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12572940 = 2235209549
BaseRepresentation
bin101111111101…
…100100001100
3212122202211110
4233331210030
511204313230
61125252020
7211603542
oct57754414
925582743
1012572940
117108266
124264010
1327b2a13
141953d92
1511854b0
hexbfd90c

12572940 has 24 divisors (see below), whose sum is σ = 35204400. Its totient is φ = 3352768.

The previous prime is 12572909. The next prime is 12572969. The reversal of 12572940 is 4927521.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 12572898 and 12572907.

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, 104715 + ... + 104834.

It is an arithmetic number, because the mean of its divisors is an integer number (1466850).

Almost surely, 212572940 is an apocalyptic number.

12572940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12572940 is an abundant number, since it is smaller than the sum of its proper divisors (22631460).

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

12572940 is a wasteful number, since it uses less digits than its factorization.

12572940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209561 (or 209559 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 12572940 is about 3545.8341754797. The cubic root of 12572940 is about 232.5299764795.

The spelling of 12572940 in words is "twelve million, five hundred seventy-two thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 209549 419098 628647 838196 1047745 1257294 2095490 2514588 3143235 4190980 6286470 12572940