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149290752 = 2831319787
BaseRepresentation
bin10001110010111…
…11111100000000
3101101220202102010
420321133330000
5301204301002
622451452520
73461644002
oct1071377400
9341822363
10149290752
11772a8396
1241bb7140
1324c11130
1415b82372
15d18e46c
hex8e5ff00

149290752 has 144 divisors (see below), whose sum is σ = 450988160. Its totient is φ = 43462656.

The previous prime is 149290751. The next prime is 149290759. The reversal of 149290752 is 257092941.

149290752 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 149290752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149290751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189303 + ... + 190089.

Almost surely, 2149290752 is an apocalyptic number.

149290752 is a gapful number since it is divisible by the number (12) 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 149290752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225494080).

149290752 is an abundant number, since it is smaller than the sum of its proper divisors (301697408).

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

149290752 is a wasteful number, since it uses less digits than its factorization.

149290752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838 (or 824 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 149290752 is about 12218.4594773646. The cubic root of 149290752 is about 530.4905296040.

The spelling of 149290752 in words is "one hundred forty-nine million, two hundred ninety thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 13 16 19 24 26 32 38 39 48 52 57 64 76 78 96 104 114 128 152 156 192 208 228 247 256 304 312 384 416 456 494 608 624 741 768 787 832 912 988 1216 1248 1482 1574 1664 1824 1976 2361 2432 2496 2964 3148 3328 3648 3952 4722 4864 4992 5928 6296 7296 7904 9444 9984 10231 11856 12592 14592 14953 15808 18888 20462 23712 25184 29906 30693 31616 37776 40924 44859 47424 50368 59812 61386 63232 75552 81848 89718 94848 100736 119624 122772 151104 163696 179436 189696 194389 201472 239248 245544 302208 327392 358872 388778 478496 491088 583167 604416 654784 717744 777556 956992 982176 1166334 1309568 1435488 1555112 1913984 1964352 2332668 2619136 2870976 3110224 3827968 3928704 4665336 5741952 6220448 7857408 9330672 11483904 12440896 18661344 24881792 37322688 49763584 74645376 149290752