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12757142 = 2109139421
BaseRepresentation
bin110000101010…
…100010010110
3220000010111202
4300222202112
511231212032
61133232502
7213301556
oct60524226
926003452
1012757142
1172236a2
124332732
132848808
1419a1166
1511bed62
hexc2a896

12757142 has 16 divisors (see below), whose sum is σ = 19496400. Its totient is φ = 6259680.

The previous prime is 12757139. The next prime is 12757177. The reversal of 12757142 is 24175721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30092 + ... + 30512.

It is an arithmetic number, because the mean of its divisors is an integer number (1218525).

Almost surely, 212757142 is an apocalyptic number.

12757142 is a deficient number, since it is larger than the sum of its proper divisors (6739258).

12757142 is a wasteful number, since it uses less digits than its factorization.

12757142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671.

The product of its digits is 3920, while the sum is 29.

The square root of 12757142 is about 3571.7141542962. The cubic root of 12757142 is about 233.6600488922.

The spelling of 12757142 in words is "twelve million, seven hundred fifty-seven thousand, one hundred forty-two".

Divisors: 1 2 109 139 218 278 421 842 15151 30302 45889 58519 91778 117038 6378571 12757142