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123020300032 = 28729807103
BaseRepresentation
bin111001010010010010…
…1001100111100000000
3102202112111101202020121
41302210211030330000
54003421144100112
6132303103550024
711613362203600
oct1624445147400
9382474352217
10123020300032
1148199830253
121ba132bb314
13b7a6b58756
145d50514c00
153300209407
hex1ca494cf00

123020300032 has 54 divisors (see below), whose sum is σ = 285651518208. Its totient is φ = 52722980352.

The previous prime is 123020300003. The next prime is 123020300059. The reversal of 123020300032 is 230003020321.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 123020299979 and 123020300015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4891008 + ... + 4916095.

Almost surely, 2123020300032 is an apocalyptic number.

It is an amenable number.

123020300032 is an abundant number, since it is smaller than the sum of its proper divisors (162631218176).

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

123020300032 is an frugal number, since it uses more digits than its factorization.

123020300032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9807133 (or 9807112 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 123020300032 its reverse (230003020321), we get a palindrome (353023320353).

The spelling of 123020300032 in words is "one hundred twenty-three billion, twenty million, three hundred thousand, thirty-two".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 196 224 256 392 448 784 896 1568 1792 3136 6272 12544 9807103 19614206 39228412 68649721 78456824 137299442 156913648 274598884 313827296 480548047 549197768 627654592 961096094 1098395536 1255309184 1922192188 2196791072 2510618368 3844384376 4393582144 7688768752 8787164288 15377537504 17574328576 30755075008 61510150016 123020300032