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154532061 = 3240941981
BaseRepresentation
bin10010011010111…
…11100011011101
3101202210001010200
421031133203131
5304030011221
623200054113
73554333535
oct1115374335
9352701120
10154532061
117a258252
1243904339
13260279b8
14167484c5
15d877426
hex935f8dd

154532061 has 12 divisors (see below), whose sum is σ = 223764060. Its totient is φ = 102767040.

The previous prime is 154532051. The next prime is 154532069. The reversal of 154532061 is 160235451.

154532061 is a `hidden beast` number, since 1 + 5 + 453 + 206 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 65512836 + 89019225 = 8094^2 + 9435^2 .

It is not a de Polignac number, because 154532061 - 25 = 154532029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154532069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17310 + ... + 24671.

It is an arithmetic number, because the mean of its divisors is an integer number (18647005).

Almost surely, 2154532061 is an apocalyptic number.

It is an amenable number.

154532061 is a deficient number, since it is larger than the sum of its proper divisors (69231999).

154532061 is a wasteful number, since it uses less digits than its factorization.

154532061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42396 (or 42393 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 154532061 is about 12431.0925103146. The cubic root of 154532061 is about 536.6274269283.

The spelling of 154532061 in words is "one hundred fifty-four million, five hundred thirty-two thousand, sixty-one".

Divisors: 1 3 9 409 1227 3681 41981 125943 377829 17170229 51510687 154532061