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123085032 = 23371771607
BaseRepresentation
bin1110101011000…
…10000011101000
322120121100220220
413111202003220
5223002210112
620114050040
73023130330
oct725420350
9276540826
10123085032
1163529674
1235279920
131c6671a5
14124c00c0
15ac1498c
hex75620e8

123085032 has 128 divisors (see below), whose sum is σ = 378224640. Its totient is φ = 32578560.

The previous prime is 123085031. The next prime is 123085037. The reversal of 123085032 is 230580321.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 123084993 and 123085011.

It is not an unprimeable number, because it can be changed into a prime (123085031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202473 + ... + 203079.

It is an arithmetic number, because the mean of its divisors is an integer number (2954880).

Almost surely, 2123085032 is an apocalyptic number.

123085032 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 123085032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189112320).

123085032 is an abundant number, since it is smaller than the sum of its proper divisors (255139608).

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

123085032 is a wasteful number, since it uses less digits than its factorization.

123085032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711 (or 707 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 123085032 is about 11094.3693827094. The cubic root of 123085032 is about 497.4335586296.

The spelling of 123085032 in words is "one hundred twenty-three million, eighty-five thousand, thirty-two".

Divisors: 1 2 3 4 6 7 8 12 14 17 21 24 28 34 42 51 56 68 71 84 102 119 136 142 168 204 213 238 284 357 408 426 476 497 568 607 714 852 952 994 1207 1214 1428 1491 1704 1821 1988 2414 2428 2856 2982 3621 3642 3976 4249 4828 4856 5964 7242 7284 8449 8498 9656 10319 11928 12747 14484 14568 16898 16996 20638 25347 25494 28968 30957 33796 33992 41276 43097 50694 50988 61914 67592 72233 82552 86194 101388 101976 123828 129291 144466 172388 202776 216699 247656 258582 288932 301679 344776 433398 517164 577864 603358 732649 866796 905037 1034328 1206716 1465298 1733592 1810074 2197947 2413432 2930596 3620148 4395894 5128543 5861192 7240296 8791788 10257086 15385629 17583576 20514172 30771258 41028344 61542516 123085032