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148157568 = 2732132761
BaseRepresentation
bin10001101010010…
…11010010000000
3101022210011222100
420311023102000
5300412020233
622411310400
73446214156
oct1065132200
9338704870
10148157568
11766a3a79
124174b400
1324905400
14159693d6
15d018813
hex8d4b480

148157568 has 144 divisors (see below), whose sum is σ = 462263490. Its totient is φ = 45527040.

The previous prime is 148157561. The next prime is 148157579. The reversal of 148157568 is 865751841.

148157568 is a `hidden beast` number, since 1 + 4 + 81 + 5 + 7 + 568 = 666.

148157568 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 24681024 + 123476544 = 4968^2 + 11112^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (148157561) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 194308 + ... + 195068.

Almost surely, 2148157568 is an apocalyptic number.

148157568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148157568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231131745).

148157568 is an abundant number, since it is smaller than the sum of its proper divisors (314105922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

148157568 is a wasteful number, since it uses less digits than its factorization.

148157568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807 (or 779 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 148157568 is about 12171.9993427538. Note that the first 3 decimals coincide. The cubic root of 148157568 is about 529.1448985638.

It can be divided in two parts, 1481 and 57568, that added together give a 10-th power (59049 = 310).

The spelling of 148157568 in words is "one hundred forty-eight million, one hundred fifty-seven thousand, five hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 48 52 64 72 78 96 104 117 128 144 156 169 192 208 234 288 312 338 384 416 468 507 576 624 676 761 832 936 1014 1152 1248 1352 1521 1522 1664 1872 2028 2283 2496 2704 3042 3044 3744 4056 4566 4992 5408 6084 6088 6849 7488 8112 9132 9893 10816 12168 12176 13698 14976 16224 18264 19786 21632 24336 24352 27396 29679 32448 36528 39572 48672 48704 54792 59358 64896 73056 79144 89037 97344 97408 109584 118716 128609 146112 158288 178074 194688 219168 237432 257218 292224 316576 356148 385827 438336 474864 514436 633152 712296 771654 876672 949728 1028872 1157481 1266304 1424592 1543308 1899456 2057744 2314962 2849184 3086616 3798912 4115488 4629924 5698368 6173232 8230976 9259848 11396736 12346464 16461952 18519696 24692928 37039392 49385856 74078784 148157568