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157704206 = 21117715939
BaseRepresentation
bin10010110011001…
…10000000001110
3101222202012111112
421121212000032
5310333013311
623352052022
73623315012
oct1131460016
9358665445
10157704206
1181024560
1244994012
13268987ca
1416d32542
15dca228b
hex966600e

157704206 has 32 divisors (see below), whose sum is σ = 277136640. Its totient is φ = 66505600.

The previous prime is 157704187. The next prime is 157704221. The reversal of 157704206 is 602407751.

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 15 ways as a sum of consecutive naturals, for example, 23585 + ... + 29523.

It is an arithmetic number, because the mean of its divisors is an integer number (8660520).

Almost surely, 2157704206 is an apocalyptic number.

157704206 is a deficient number, since it is larger than the sum of its proper divisors (119432434).

157704206 is a wasteful number, since it uses less digits than its factorization.

157704206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6040.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 157704206 is about 12558.0335244018. The cubic root of 157704206 is about 540.2744444003.

The spelling of 157704206 in words is "one hundred fifty-seven million, seven hundred four thousand, two hundred six".

Divisors: 1 2 11 17 22 34 71 142 187 374 781 1207 1562 2414 5939 11878 13277 26554 65329 100963 130658 201926 421669 843338 1110593 2221186 4638359 7168373 9276718 14336746 78852103 157704206