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13663114780 = 2257791235363
BaseRepresentation
bin11001011100110001…
…01001011000011100
31022021012120010221011
430232120221120130
5210440224133110
610135435545004
7662404362610
oct145630513034
938235503834
1013663114780
1158815213a7
1227938bb164
131399898203
14938861340
1554e78a48a
hex32e62961c

13663114780 has 48 divisors (see below), whose sum is σ = 33206584320. Its totient is φ = 4625195328.

The previous prime is 13663114739. The next prime is 13663114783. The reversal of 13663114780 is 8741136631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13663114783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 606622 + ... + 628741.

It is an arithmetic number, because the mean of its divisors is an integer number (691803840).

Almost surely, 213663114780 is an apocalyptic number.

13663114780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13663114780 is an abundant number, since it is smaller than the sum of its proper divisors (19543469540).

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

13663114780 is a wasteful number, since it uses less digits than its factorization.

13663114780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235458 (or 1235456 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 13663114780 in words is "thirteen billion, six hundred sixty-three million, one hundred fourteen thousand, seven hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 79 140 158 316 395 553 790 1106 1580 2212 2765 5530 11060 1235363 2470726 4941452 6176815 8647541 12353630 17295082 24707260 34590164 43237705 86475410 97593677 172950820 195187354 390374708 487968385 683155739 975936770 1366311478 1951873540 2732622956 3415778695 6831557390 13663114780