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125016741 = 3213890749
BaseRepresentation
bin1110111001110…
…01101010100101
322201020111201200
413130321222211
5224001013431
620223313113
73045424203
oct734715245
9281214650
10125016741
1164628a23
1235a4b799
131cb92505
1412864073
15ae96ee6
hex7739aa5

125016741 has 6 divisors (see below), whose sum is σ = 180579750. Its totient is φ = 83344488.

The previous prime is 125016721. The next prime is 125016743. The reversal of 125016741 is 147610521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 72743841 + 52272900 = 8529^2 + 7230^2 .

It is not a de Polignac number, because 125016741 - 26 = 125016677 is a prime.

It is a super-2 number, since 2×1250167412 = 31258371060522162, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125016743) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6945366 + ... + 6945383.

It is an arithmetic number, because the mean of its divisors is an integer number (30096625).

Almost surely, 2125016741 is an apocalyptic number.

It is an amenable number.

125016741 is a deficient number, since it is larger than the sum of its proper divisors (55563009).

125016741 is a wasteful number, since it uses less digits than its factorization.

125016741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13890755 (or 13890752 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 125016741 is about 11181.0885427135. The cubic root of 125016741 is about 500.0223203369.

The spelling of 125016741 in words is "one hundred twenty-five million, sixteen thousand, seven hundred forty-one".

Divisors: 1 3 9 13890749 41672247 125016741