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172646968 = 23131797651
BaseRepresentation
bin10100100101001…
…10001000111000
3110000212101010011
422102212020320
5323144200333
625044231304
74164321634
oct1222461070
9400771104
10172646968
118950024a
124999b534
13299cb090
1418d01dc4
15102549cd
hexa4a6238

172646968 has 32 divisors (see below), whose sum is σ = 369124560. Its totient is φ = 74995200.

The previous prime is 172646959. The next prime is 172646983. The reversal of 172646968 is 869646271.

It is a congruent number.

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, 47058 + ... + 50593.

Almost surely, 2172646968 is an apocalyptic number.

It is an amenable number.

172646968 is an abundant number, since it is smaller than the sum of its proper divisors (196477592).

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

172646968 is a wasteful number, since it uses less digits than its factorization.

172646968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97687 (or 97683 counting only the distinct ones).

The product of its digits is 870912, while the sum is 49.

The square root of 172646968 is about 13139.5193214973. The cubic root of 172646968 is about 556.8261874849.

The spelling of 172646968 in words is "one hundred seventy-two million, six hundred forty-six thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 13 17 26 34 52 68 104 136 221 442 884 1768 97651 195302 390604 781208 1269463 1660067 2538926 3320134 5077852 6640268 10155704 13280536 21580871 43161742 86323484 172646968