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54172902 = 2371289831
BaseRepresentation
bin1100111010100…
…1110011100110
310202221021020210
43032221303212
5102332013102
65213040250
71225314330
oct316516346
9122837223
1054172902
11286409a3
1216186086
13b2b9894
1472a2450
154b5136c
hex33a9ce6

54172902 has 16 divisors (see below), whose sum is σ = 123823872. Its totient is φ = 15477960.

The previous prime is 54172901. The next prime is 54172919. The reversal of 54172902 is 20927145.

It is a super-2 number, since 2×541729022 = 5869406622203208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54172902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54172901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644874 + ... + 644957.

It is an arithmetic number, because the mean of its divisors is an integer number (7738992).

Almost surely, 254172902 is an apocalyptic number.

54172902 is an abundant number, since it is smaller than the sum of its proper divisors (69650970).

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

54172902 is a wasteful number, since it uses less digits than its factorization.

54172902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289843.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 54172902 is about 7360.2243172338. The cubic root of 54172902 is about 378.3792978929.

The spelling of 54172902 in words is "fifty-four million, one hundred seventy-two thousand, nine hundred two".

Divisors: 1 2 3 6 7 14 21 42 1289831 2579662 3869493 7738986 9028817 18057634 27086451 54172902