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103172456 = 23171315791
BaseRepresentation
bin1100010011001…
…00100101101000
321012010201000002
412021210211220
5202403004311
614123202132
72361644222
oct611444550
9235121002
10103172456
1153268aa2
122a676348
13184b47ba
14d9b9412
1590ce93b
hex6264968

103172456 has 32 divisors (see below), whose sum is σ = 206426880. Its totient is φ = 48172800.

The previous prime is 103172431. The next prime is 103172471. The reversal of 103172456 is 654271301.

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, 14921 + ... + 20711.

It is an arithmetic number, because the mean of its divisors is an integer number (6450840).

Almost surely, 2103172456 is an apocalyptic number.

It is an amenable number.

103172456 is an abundant number, since it is smaller than the sum of its proper divisors (103254424).

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

103172456 is a wasteful number, since it uses less digits than its factorization.

103172456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5945 (or 5941 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 103172456 is about 10157.3843089646. The cubic root of 103172456 is about 469.0162856549.

The spelling of 103172456 in words is "one hundred three million, one hundred seventy-two thousand, four hundred fifty-six".

Divisors: 1 2 4 8 17 34 68 131 136 262 524 1048 2227 4454 5791 8908 11582 17816 23164 46328 98447 196894 393788 758621 787576 1517242 3034484 6068968 12896557 25793114 51586228 103172456