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172492292 = 2276160439
BaseRepresentation
bin10100100100000…
…00011000000100
3110000120111221102
422102000120010
5323124223132
625041035232
74163105660
oct1222003004
9400514842
10172492292
1189405015
1249925b18
132997585b
1418ca18a0
1510223c62
hexa480604

172492292 has 12 divisors (see below), whose sum is σ = 344984640. Its totient is φ = 73925256.

The previous prime is 172492273. The next prime is 172492297. The reversal of 172492292 is 292294271.

172492292 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (172492297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3080192 + ... + 3080247.

It is an arithmetic number, because the mean of its divisors is an integer number (28748720).

Almost surely, 2172492292 is an apocalyptic number.

It is an amenable number.

172492292 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

172492292 is a wasteful number, since it uses less digits than its factorization.

172492292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6160450 (or 6160448 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The square root of 172492292 is about 13133.6320947406. The cubic root of 172492292 is about 556.6598492398.

The spelling of 172492292 in words is "one hundred seventy-two million, four hundred ninety-two thousand, two hundred ninety-two".

Divisors: 1 2 4 7 14 28 6160439 12320878 24641756 43123073 86246146 172492292