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172108074 = 2359486181
BaseRepresentation
bin10100100001000…
…10100100101010
3102222211222220010
422100202210222
5323024424244
625024512350
74156615545
oct1220424452
9388758803
10172108074
1189172386
124977b6b6
132986c9c8
1418c0185c
1510199eb9
hexa42292a

172108074 has 16 divisors (see below), whose sum is σ = 350051040. Its totient is φ = 56396880.

The previous prime is 172108073. The next prime is 172108087. The reversal of 172108074 is 470801271.

It is not an unprimeable number, because it can be changed into a prime (172108073) 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, 242737 + ... + 243444.

It is an arithmetic number, because the mean of its divisors is an integer number (21878190).

Almost surely, 2172108074 is an apocalyptic number.

172108074 is an abundant number, since it is smaller than the sum of its proper divisors (177942966).

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

172108074 is a wasteful number, since it uses less digits than its factorization.

172108074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486245.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 172108074 is about 13118.9966841981. The cubic root of 172108074 is about 556.2462312752.

The spelling of 172108074 in words is "one hundred seventy-two million, one hundred eight thousand, seventy-four".

Divisors: 1 2 3 6 59 118 177 354 486181 972362 1458543 2917086 28684679 57369358 86054037 172108074