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12762140 = 2251673821
BaseRepresentation
bin110000101011…
…110000011100
3220000101100212
4300223300130
511231342030
61133311552
7213322256
oct60536034
926011325
1012762140
117227426
1243355b8
13284ab81
1419a2cd6
1511c1595
hexc2bc1c

12762140 has 24 divisors (see below), whose sum is σ = 26968032. Its totient is φ = 5072960.

The previous prime is 12762137. The next prime is 12762143. The reversal of 12762140 is 4126721.

It is an interprime number because it is at equal distance from previous prime (12762137) and next prime (12762143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12762143) by changing a digit.

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, 1430 + ... + 5250.

It is an arithmetic number, because the mean of its divisors is an integer number (1123668).

Almost surely, 212762140 is an apocalyptic number.

12762140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12762140 is an abundant number, since it is smaller than the sum of its proper divisors (14205892).

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

12762140 is a wasteful number, since it uses less digits than its factorization.

12762140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3997 (or 3995 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 12762140 is about 3572.4137498336. The cubic root of 12762140 is about 233.6905593949.

Adding to 12762140 its reverse (4126721), we get a palindrome (16888861).

The spelling of 12762140 in words is "twelve million, seven hundred sixty-two thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 167 334 668 835 1670 3340 3821 7642 15284 19105 38210 76420 638107 1276214 2552428 3190535 6381070 12762140