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123868264 = 23131637307
BaseRepresentation
bin1110110001000…
…01010001101000
322122002011022111
413120201101220
5223202241024
620142532104
73032601652
oct730412150
9278064274
10123868264
1163a14073
1235597034
131c87c840
14126456d2
15ad1ba94
hex7621468

123868264 has 32 divisors (see below), whose sum is σ = 251687520. Its totient is φ = 56811456.

The previous prime is 123868259. The next prime is 123868279. The reversal of 123868264 is 462868321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13299 + ... + 20605.

It is an arithmetic number, because the mean of its divisors is an integer number (7865235).

Almost surely, 2123868264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123868264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125843760).

123868264 is an abundant number, since it is smaller than the sum of its proper divisors (127819256).

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

123868264 is a wasteful number, since it uses less digits than its factorization.

123868264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7489 (or 7485 counting only the distinct ones).

The product of its digits is 110592, while the sum is 40.

The square root of 123868264 is about 11129.6120327710. The cubic root of 123868264 is about 498.4864415716.

The spelling of 123868264 in words is "one hundred twenty-three million, eight hundred sixty-eight thousand, two hundred sixty-four".

Divisors: 1 2 4 8 13 26 52 104 163 326 652 1304 2119 4238 7307 8476 14614 16952 29228 58456 94991 189982 379964 759928 1191041 2382082 4764164 9528328 15483533 30967066 61934132 123868264