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125152061 = 2572811733
BaseRepresentation
bin1110111010110…
…10101100111101
322201111101100112
413131122230331
5224014331221
620230235405
73046526546
oct735325475
9281441315
10125152061
1164710661
1235ab5b65
131cc0bc98
141289b4cd
15aec215b
hex775ab3d

125152061 has 8 divisors (see below), whose sum is σ = 126158904. Its totient is φ = 124149760.

The previous prime is 125152051. The next prime is 125152063. The reversal of 125152061 is 160251521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 62504836 + 62647225 = 7906^2 + 7915^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125152061 - 26 = 125151997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125152063) 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, 71351 + ... + 73083.

It is an arithmetic number, because the mean of its divisors is an integer number (15769863).

Almost surely, 2125152061 is an apocalyptic number.

It is an amenable number.

125152061 is a deficient number, since it is larger than the sum of its proper divisors (1006843).

125152061 is a wasteful number, since it uses less digits than its factorization.

125152061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 125152061 is about 11187.1381952669. The cubic root of 125152061 is about 500.2026658420.

The spelling of 125152061 in words is "one hundred twenty-five million, one hundred fifty-two thousand, sixty-one".

Divisors: 1 257 281 1733 72217 445381 486973 125152061