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12740862 = 2317911863
BaseRepresentation
bin110000100110…
…100011111110
3212222022011210
4300212203332
511230201422
61133025250
7213203241
oct60464376
925868153
1012740862
117212442
124325226
132841294
141999258
1511ba10c
hexc268fe

12740862 has 16 divisors (see below), whose sum is σ = 25626240. Its totient is φ = 4222872.

The previous prime is 12740809. The next prime is 12740867. The reversal of 12740862 is 26804721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12740867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4858 + ... + 7005.

It is an arithmetic number, because the mean of its divisors is an integer number (1601640).

Almost surely, 212740862 is an apocalyptic number.

12740862 is an abundant number, since it is smaller than the sum of its proper divisors (12885378).

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

12740862 is a wasteful number, since it uses less digits than its factorization.

12740862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12047.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 12740862 is about 3569.4344089785. The cubic root of 12740862 is about 233.5606116543.

The spelling of 12740862 in words is "twelve million, seven hundred forty thousand, eight hundred sixty-two".

Divisors: 1 2 3 6 179 358 537 1074 11863 23726 35589 71178 2123477 4246954 6370431 12740862