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172680801 = 3427113477
BaseRepresentation
bin10100100101011…
…10011001100001
3110000221002112020
422102232121201
5323201241201
625045052053
74164522366
oct1222563141
9400832466
10172680801
1189523707
12499b7029
1329a105b7
1418d1046d
151025ea36
hexa4ae661

172680801 has 8 divisors (see below), whose sum is σ = 230312064. Its totient is φ = 115085040.

The previous prime is 172680791. The next prime is 172680817. The reversal of 172680801 is 108086271.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 172680801 - 25 = 172680769 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (172680821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6075 + ... + 19551.

It is an arithmetic number, because the mean of its divisors is an integer number (28789008).

Almost surely, 2172680801 is an apocalyptic number.

It is an amenable number.

172680801 is a deficient number, since it is larger than the sum of its proper divisors (57631263).

172680801 is a wasteful number, since it uses less digits than its factorization.

172680801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17751.

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 172680801 is about 13140.8067103964. The cubic root of 172680801 is about 556.8625581785.

The spelling of 172680801 in words is "one hundred seventy-two million, six hundred eighty thousand, eight hundred one".

Divisors: 1 3 4271 12813 13477 40431 57560267 172680801