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10915684980 = 2235223815821
BaseRepresentation
bin10100010101010000…
…00010001001110100
31001011201210020202220
422022220002021310
5134323403404410
65003053002340
7534333535314
oct121250021164
931151706686
1010915684980
1146a168a762
1221477833b0
13104c6161c5
14757a03444
1543d487070
hex28aa02274

10915684980 has 48 divisors (see below), whose sum is σ = 30701013504. Its totient is φ = 2897792640.

The previous prime is 10915684943. The next prime is 10915684993. The reversal of 10915684980 is 8948651901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394531 + ... + 421290.

It is an arithmetic number, because the mean of its divisors is an integer number (639604448).

Almost surely, 210915684980 is an apocalyptic number.

10915684980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10915684980 is an abundant number, since it is smaller than the sum of its proper divisors (19785328524).

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

10915684980 is a wasteful number, since it uses less digits than its factorization.

10915684980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816056 (or 816054 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 51.

The spelling of 10915684980 in words is "ten billion, nine hundred fifteen million, six hundred eighty-four thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 223 446 669 892 1115 1338 2230 2676 3345 4460 6690 13380 815821 1631642 2447463 3263284 4079105 4894926 8158210 9789852 12237315 16316420 24474630 48949260 181928083 363856166 545784249 727712332 909640415 1091568498 1819280830 2183136996 2728921245 3638561660 5457842490 10915684980