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13550023988 = 22316711811381
BaseRepresentation
bin11001001111010010…
…01111010100110100
31021222022202112112022
430213221033110310
5210222301231423
610120320012312
7656532206054
oct144751172464
937868675468
1013550023988
1158236a9636
122761a61098
13137c320097
14927823564
1554489bdc8
hex327a4f534

13550023988 has 48 divisors (see below), whose sum is σ = 24881837568. Its totient is φ = 6448464000.

The previous prime is 13550023967. The next prime is 13550024041. The reversal of 13550023988 is 88932005531.

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, 9811058 + ... + 9812438.

It is an arithmetic number, because the mean of its divisors is an integer number (518371616).

Almost surely, 213550023988 is an apocalyptic number.

It is an amenable number.

13550023988 is a deficient number, since it is larger than the sum of its proper divisors (11331813580).

13550023988 is a wasteful number, since it uses less digits than its factorization.

13550023988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664 (or 2662 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 13550023988 in words is "thirteen billion, five hundred fifty million, twenty-three thousand, nine hundred eighty-eight".

Divisors: 1 2 4 31 62 67 124 134 268 1181 1381 2077 2362 2762 4154 4724 5524 8308 36611 42811 73222 79127 85622 92527 146444 158254 171244 185054 316508 370108 1630961 2452937 2868337 3261922 4905874 5736674 6523844 9811748 11473348 50559791 101119582 109274387 202239164 218548774 437097548 3387505997 6775011994 13550023988