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125664214 = 213191272003
BaseRepresentation
bin1110111110101…
…11101111010110
322202110101220011
413133113233112
5224132223324
620245230434
73054061654
oct737275726
9282411804
10125664214
1164a30425
123610241a
132005b130
1412991dd4
15b073c94
hex77d7bd6

125664214 has 32 divisors (see below), whose sum is σ = 215470080. Its totient is φ = 54486432.

The previous prime is 125664211. The next prime is 125664257. The reversal of 125664214 is 412466521.

It is a happy number.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125664211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61737 + ... + 63739.

It is an arithmetic number, because the mean of its divisors is an integer number (6733440).

Almost surely, 2125664214 is an apocalyptic number.

125664214 is a deficient number, since it is larger than the sum of its proper divisors (89805866).

125664214 is a wasteful number, since it uses less digits than its factorization.

125664214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2164.

The product of its digits is 11520, while the sum is 31.

The square root of 125664214 is about 11210.0050847446. The cubic root of 125664214 is about 500.8840546402.

The spelling of 125664214 in words is "one hundred twenty-five million, six hundred sixty-four thousand, two hundred fourteen".

Divisors: 1 2 13 19 26 38 127 247 254 494 1651 2003 2413 3302 4006 4826 26039 31369 38057 52078 62738 76114 254381 494741 508762 989482 3306953 4833239 6613906 9666478 62832107 125664214