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12525620 = 2252712311
BaseRepresentation
bin101111110010…
…000000110100
3212120100220212
4233302000310
511201304440
61124244552
7211315562
oct57620064
925510825
1012525620
117085758
124240758
132797313
141940a32
151176465
hexbf2034

12525620 has 24 divisors (see below), whose sum is σ = 26412288. Its totient is φ = 4989600.

The previous prime is 12525587. The next prime is 12525631. The reversal of 12525620 is 2652521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4265 + ... + 6575.

It is an arithmetic number, because the mean of its divisors is an integer number (1100512).

Almost surely, 212525620 is an apocalyptic number.

12525620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12525620 is an abundant number, since it is smaller than the sum of its proper divisors (13886668).

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

12525620 is a wasteful number, since it uses less digits than its factorization.

12525620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591 (or 2589 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 12525620 is about 3539.1552664442. The cubic root of 12525620 is about 232.2378901525.

The spelling of 12525620 in words is "twelve million, five hundred twenty-five thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 271 542 1084 1355 2311 2710 4622 5420 9244 11555 23110 46220 626281 1252562 2505124 3131405 6262810 12525620