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10980623394 = 23213291618129
BaseRepresentation
bin10100011100111111…
…10000010000100010
31001100020222110112100
422032133300100202
5134442014422034
65013332511230
7536052521166
oct121637602042
931306873470
1010980623394
114725303974
12216547b516
13105cc01bc0
147624a8ca6
15444013099
hex28e7f0422

10980623394 has 48 divisors (see below), whose sum is σ = 26504969400. Its totient is φ = 3262146048.

The previous prime is 10980623389. The next prime is 10980623411. The reversal of 10980623394 is 49332608901.

It is a happy number.

10980623394 is a `hidden beast` number, since 10 + 9 + 8 + 0 + 623 + 3 + 9 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 9611253369 + 1369370025 = 98037^2 + 37005^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 802279 + ... + 815850.

Almost surely, 210980623394 is an apocalyptic number.

10980623394 is an abundant number, since it is smaller than the sum of its proper divisors (15524346006).

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

10980623394 is a wasteful number, since it uses less digits than its factorization.

10980623394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618179 (or 1618176 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 10980623394 in words is "ten billion, nine hundred eighty million, six hundred twenty-three thousand, three hundred ninety-four".

Divisors: 1 2 3 6 9 13 18 26 29 39 58 78 87 117 174 234 261 377 522 754 1131 2262 3393 6786 1618129 3236258 4854387 9708774 14563161 21035677 29126322 42071354 46925741 63107031 93851482 126214062 140777223 189321093 281554446 378642186 422331669 610034633 844663338 1220069266 1830103899 3660207798 5490311697 10980623394