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231056408 = 23112625641
BaseRepresentation
bin11011100010110…
…10010000011000
3121002202212210202
431301122100120
5433122301113
634532201332
75503642562
oct1561322030
9532685722
10231056408
11109475110
1265469248
1338b3c08b
1422988332
1515441258
hexdc5a418

231056408 has 16 divisors (see below), whose sum is σ = 472615560. Its totient is φ = 105025600.

The previous prime is 231056407. The next prime is 231056417. The reversal of 231056408 is 804650132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231056407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1312733 + ... + 1312908.

Almost surely, 2231056408 is an apocalyptic number.

It is an amenable number.

231056408 is an abundant number, since it is smaller than the sum of its proper divisors (241559152).

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

231056408 is a wasteful number, since it uses less digits than its factorization.

231056408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2625658 (or 2625654 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 231056408 is about 15200.5397272597. The cubic root of 231056408 is about 613.6291833041.

The spelling of 231056408 in words is "two hundred thirty-one million, fifty-six thousand, four hundred eight".

Divisors: 1 2 4 8 11 22 44 88 2625641 5251282 10502564 21005128 28882051 57764102 115528204 231056408