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12962990 = 252235813
BaseRepresentation
bin110001011100…
…110010101110
3220101120212202
4301130302232
511304303430
61141501502
7215116655
oct61346256
926346782
1012962990
117354317
124411892
1328bb411
141a1619c
151210d45
hexc5ccae

12962990 has 16 divisors (see below), whose sum is σ = 23442048. Its totient is φ = 5161056.

The previous prime is 12962981. The next prime is 12963089. The reversal of 12962990 is 9926921.

It is a congruent number.

It is an unprimeable number.

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, 677 + ... + 5136.

It is an arithmetic number, because the mean of its divisors is an integer number (1465128).

Almost surely, 212962990 is an apocalyptic number.

12962990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12962990 is a deficient number, since it is larger than the sum of its proper divisors (10479058).

12962990 is a wasteful number, since it uses less digits than its factorization.

12962990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6043.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 12962990 is about 3600.4152538284. The cubic root of 12962990 is about 234.9101210537.

The spelling of 12962990 in words is "twelve million, nine hundred sixty-two thousand, nine hundred ninety".

Divisors: 1 2 5 10 223 446 1115 2230 5813 11626 29065 58130 1296299 2592598 6481495 12962990