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152100549 = 3216900061
BaseRepresentation
bin10010001000011…
…01111011000101
3101121012111201200
421010031323011
5302414204144
623032013113
73524555556
oct1104157305
9347174650
10152100549
1178947437
1242b31199
1325686033
14162b432d
15d546c69
hex910dec5

152100549 has 6 divisors (see below), whose sum is σ = 219700806. Its totient is φ = 101400360.

The previous prime is 152100469. The next prime is 152100583. The reversal of 152100549 is 945001251.

152100549 is a `hidden beast` number, since 15 + 2 + 100 + 549 = 666.

It can be written as a sum of positive squares in only one way, i.e., 116316225 + 35784324 = 10785^2 + 5982^2 .

It is not a de Polignac number, because 152100549 - 28 = 152100293 is a prime.

It is a super-2 number, since 2×1521005492 = 46269154012202802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152105549) 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 5 ways as a sum of consecutive naturals, for example, 8450022 + ... + 8450039.

It is an arithmetic number, because the mean of its divisors is an integer number (36616801).

Almost surely, 2152100549 is an apocalyptic number.

It is an amenable number.

152100549 is a deficient number, since it is larger than the sum of its proper divisors (67600257).

152100549 is a wasteful number, since it uses less digits than its factorization.

152100549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16900067 (or 16900064 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 152100549 is about 12332.9051322063. The cubic root of 152100549 is about 533.7979814888.

The spelling of 152100549 in words is "one hundred fifty-two million, one hundred thousand, five hundred forty-nine".

Divisors: 1 3 9 16900061 50700183 152100549