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12690852 = 22337101283
BaseRepresentation
bin110000011010…
…010110100100
3212212202120120
4300122112210
511222101402
61132001540
7212604366
oct60322644
925782516
1012690852
117188909
1243002b0
1328245a5
141984d36
1511aa3bc
hexc1a5a4

12690852 has 48 divisors (see below), whose sum is σ = 30821952. Its totient is φ = 4060800.

The previous prime is 12690851. The next prime is 12690859. The reversal of 12690852 is 25809621.

It is a super-2 number, since 2×126908522 = 322115448971808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12690851) 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, 44703 + ... + 44985.

It is an arithmetic number, because the mean of its divisors is an integer number (642124).

Almost surely, 212690852 is an apocalyptic number.

12690852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12690852 is an abundant number, since it is smaller than the sum of its proper divisors (18131100).

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

12690852 is a wasteful number, since it uses less digits than its factorization.

12690852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 12690852 is about 3562.4222096770. The cubic root of 12690852 is about 233.2546228847.

The spelling of 12690852 in words is "twelve million, six hundred ninety thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 12 37 74 101 111 148 202 222 283 303 404 444 566 606 849 1132 1212 1698 3396 3737 7474 10471 11211 14948 20942 22422 28583 31413 41884 44844 57166 62826 85749 114332 125652 171498 342996 1057571 2115142 3172713 4230284 6345426 12690852