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3129080 = 235137571
BaseRepresentation
bin1011111011111011111000
312212222021212
423323323320
51300112310
6151022252
735411453
oct13737370
95788255
103129080
111847a19
12106a988
13857336
145b649a
1541c205
hex2fbef8

3129080 has 32 divisors (see below), whose sum is σ = 7104240. Its totient is φ = 1240320.

The previous prime is 3129073. The next prime is 3129089. The reversal of 3129080 is 809213.

3129080 is nontrivially palindromic in base 7.

It is a super-2 number, since 2×31290802 = 19582283292800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3129089) 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, 5195 + ... + 5765.

Almost surely, 23129080 is an apocalyptic number.

It is an amenable number.

3129080 is an abundant number, since it is smaller than the sum of its proper divisors (3975160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3129080 is a wasteful number, since it uses less digits than its factorization.

3129080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719 (or 715 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 3129080 is about 1768.9205748139. The cubic root of 3129080 is about 146.2644858664.

The spelling of 3129080 in words is "three million, one hundred twenty-nine thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 137 274 548 571 685 1096 1142 1370 2284 2740 2855 4568 5480 5710 11420 22840 78227 156454 312908 391135 625816 782270 1564540 3129080