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172107233 = 15110391097
BaseRepresentation
bin10100100001000…
…10010111100001
3102222211221201222
422100202113201
5323024412413
625024504425
74156613234
oct1220422741
9388757658
10172107233
1189171791
124977b115
132986c4cc
1418c0141b
1510199b08
hexa4225e1

172107233 has 8 divisors (see below), whose sum is σ = 173571840. Its totient is φ = 170647200.

The previous prime is 172107211. The next prime is 172107241. The reversal of 172107233 is 332701271.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-172107233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172107283) by changing a digit.

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, 156341 + ... + 157437.

It is an arithmetic number, because the mean of its divisors is an integer number (21696480).

Almost surely, 2172107233 is an apocalyptic number.

It is an amenable number.

172107233 is a deficient number, since it is larger than the sum of its proper divisors (1464607).

172107233 is a wasteful number, since it uses less digits than its factorization.

172107233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2287.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 172107233 is about 13118.9646314029. The cubic root of 172107233 is about 556.2453252479.

The spelling of 172107233 in words is "one hundred seventy-two million, one hundred seven thousand, two hundred thirty-three".

Divisors: 1 151 1039 1097 156889 165647 1139783 172107233