Search a number
-
+
12866969076 = 2231382480571
BaseRepresentation
bin10111111101110111…
…00101110111110100
31020012201110202100020
423332323211313310
5202322421002301
65524435445140
7633566301243
oct137673456764
936181422306
1012866969076
115503083345
1225b11567b0
1312a0964790
148a0c1a95a
15504925436
hex2feee5df4

12866969076 has 24 divisors (see below), whose sum is σ = 32332384224. Its totient is φ = 3959067360.

The previous prime is 12866969057. The next prime is 12866969153. The reversal of 12866969076 is 67096966821.

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, 41240130 + ... + 41240441.

It is an arithmetic number, because the mean of its divisors is an integer number (1347182676).

Almost surely, 212866969076 is an apocalyptic number.

It is an amenable number.

12866969076 is an abundant number, since it is smaller than the sum of its proper divisors (19465415148).

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

12866969076 is a wasteful number, since it uses less digits than its factorization.

12866969076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82480591 (or 82480589 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 60.

The spelling of 12866969076 in words is "twelve billion, eight hundred sixty-six million, nine hundred sixty-nine thousand, seventy-six".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 82480571 164961142 247441713 329922284 494883426 989766852 1072247423 2144494846 3216742269 4288989692 6433484538 12866969076