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157053186 = 2328725177
BaseRepresentation
bin10010101110001…
…11000100000010
3101221112010110200
421113013010002
5310201200221
623330110030
73614634003
oct1127070402
9357463420
10157053186
118071a424
124471b316
13266cb3a4
1416c031aa
15dbc4426
hex95c7102

157053186 has 12 divisors (see below), whose sum is σ = 340281942. Its totient is φ = 52351056.

The previous prime is 157053167. The next prime is 157053187. The reversal of 157053186 is 681350751.

157053186 is a `hidden beast` number, since 1 + 570 + 5 + 3 + 1 + 86 = 666.

It can be written as a sum of positive squares in only one way, i.e., 157025961 + 27225 = 12531^2 + 165^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 157053186.

It is not an unprimeable number, because it can be changed into a prime (157053187) 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 5 ways as a sum of consecutive naturals, for example, 4362571 + ... + 4362606.

Almost surely, 2157053186 is an apocalyptic number.

157053186 is an abundant number, since it is smaller than the sum of its proper divisors (183228756).

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

157053186 is a wasteful number, since it uses less digits than its factorization.

157053186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8725185 (or 8725182 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 157053186 is about 12532.0862588796. The cubic root of 157053186 is about 539.5299819597.

It can be divided in two parts, 1570 and 53186, that added together give a square (54756 = 2342).

The spelling of 157053186 in words is "one hundred fifty-seven million, fifty-three thousand, one hundred eighty-six".

Divisors: 1 2 3 6 9 18 8725177 17450354 26175531 52351062 78526593 157053186