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12980408 = 2371931201
BaseRepresentation
bin110001100001…
…000010111000
3220102110202212
4301201002320
511310333113
61142114252
7215221520
oct61410270
926373685
1012980408
117366411
12441b988
1328c631c
141a1c680
1512160a8
hexc610b8

12980408 has 32 divisors (see below), whose sum is σ = 27982560. Its totient is φ = 5529600.

The previous prime is 12980399. The next prime is 12980431. The reversal of 12980408 is 80408921.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10208 + ... + 11408.

It is an arithmetic number, because the mean of its divisors is an integer number (874455).

Almost surely, 212980408 is an apocalyptic number.

It is an amenable number.

12980408 is an abundant number, since it is smaller than the sum of its proper divisors (15002152).

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

12980408 is a wasteful number, since it uses less digits than its factorization.

12980408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407 (or 1403 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 12980408 is about 3602.8333294783. The cubic root of 12980408 is about 235.0152879748.

The spelling of 12980408 in words is "twelve million, nine hundred eighty thousand, four hundred eight".

Divisors: 1 2 4 7 8 14 28 56 193 386 772 1201 1351 1544 2402 2702 4804 5404 8407 9608 10808 16814 33628 67256 231793 463586 927172 1622551 1854344 3245102 6490204 12980408