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12869684780 = 225673956143
BaseRepresentation
bin10111111110001011…
…11100111000101100
31020012220120201120212
423333011330320230
5202324114403110
65525014001552
7633631341611
oct137705747054
936186521525
1012869684780
115504668727
1225b20462b8
1312a13a58c4
148a1326508
15504caee05
hex2ff17ce2c

12869684780 has 24 divisors (see below), whose sum is σ = 27066524352. Its totient is φ = 5140219392.

The previous prime is 12869684767. The next prime is 12869684783. The reversal of 12869684780 is 8748696821.

It is not an unprimeable number, because it can be changed into a prime (12869684783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464612 + ... + 491531.

It is an arithmetic number, because the mean of its divisors is an integer number (1127771848).

Almost surely, 212869684780 is an apocalyptic number.

12869684780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12869684780 is an abundant number, since it is smaller than the sum of its proper divisors (14196839572).

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

12869684780 is a wasteful number, since it uses less digits than its factorization.

12869684780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956825 (or 956823 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 59.

The spelling of 12869684780 in words is "twelve billion, eight hundred sixty-nine million, six hundred eighty-four thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 673 1346 2692 3365 6730 13460 956143 1912286 3824572 4780715 9561430 19122860 643484239 1286968478 2573936956 3217421195 6434842390 12869684780