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48309408 = 2532731773
BaseRepresentation
bin1011100001001…
…0010010100000
310100220101001100
42320102102200
544331400113
64443234400
71124423520
oct270222240
9110811040
1048309408
11252a6634
1214218a00
13a015a64
1465b7680
154393d73
hex2e124a0

48309408 has 144 divisors (see below), whose sum is σ = 162279936. Its totient is φ = 13340160.

The previous prime is 48309397. The next prime is 48309409. The reversal of 48309408 is 80490384.

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

It is a super-3 number, since 3×483094083 (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (48309409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62110 + ... + 62882.

It is an arithmetic number, because the mean of its divisors is an integer number (1126944).

Almost surely, 248309408 is an apocalyptic number.

48309408 is a gapful number since it is divisible by the number (48) 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 48309408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81139968).

48309408 is an abundant number, since it is smaller than the sum of its proper divisors (113970528).

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

48309408 is a wasteful number, since it uses less digits than its factorization.

48309408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827 (or 816 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 48309408 is about 6950.4969606496. The cubic root of 48309408 is about 364.2033239937.

The spelling of 48309408 in words is "forty-eight million, three hundred nine thousand, four hundred eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 31 32 36 42 48 56 62 63 72 84 93 96 112 124 126 144 168 186 217 224 248 252 279 288 336 372 434 496 504 558 651 672 744 773 868 992 1008 1116 1302 1488 1546 1736 1953 2016 2232 2319 2604 2976 3092 3472 3906 4464 4638 5208 5411 6184 6944 6957 7812 8928 9276 10416 10822 12368 13914 15624 16233 18552 20832 21644 23963 24736 27828 31248 32466 37104 43288 47926 48699 55656 62496 64932 71889 74208 86576 95852 97398 111312 129864 143778 167741 173152 191704 194796 215667 222624 259728 287556 335482 383408 389592 431334 503223 519456 575112 670964 766816 779184 862668 1006446 1150224 1341928 1509669 1558368 1725336 2012892 2300448 2683856 3019338 3450672 4025784 5367712 6038676 6901344 8051568 12077352 16103136 24154704 48309408