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16920498712 = 2313377955661
BaseRepresentation
bin11111100001000101…
…00101001000011000
31121200012220101122111
433300202211020120
5234123121424322
611435001002104
71136206603015
oct176042451030
947605811574
1016920498712
1171a31a9137
123342783334
1317986a9020
14b6730670c
15690721177
hex3f08a5218

16920498712 has 64 divisors (see below), whose sum is σ = 35534620800. Its totient is φ = 7502077440.

The previous prime is 16920498653. The next prime is 16920498737. The reversal of 16920498712 is 21789402961.

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, 276162 + ... + 331822.

It is an arithmetic number, because the mean of its divisors is an integer number (555228450).

Almost surely, 216920498712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16920498712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17767310400).

16920498712 is an abundant number, since it is smaller than the sum of its proper divisors (18614122088).

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

16920498712 is a wasteful number, since it uses less digits than its factorization.

16920498712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55796 (or 55792 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 16920498712 in words is "sixteen billion, nine hundred twenty million, four hundred ninety-eight thousand, seven hundred twelve".

Divisors: 1 2 4 8 13 26 37 52 74 79 104 148 158 296 316 481 632 962 1027 1924 2054 2923 3848 4108 5846 8216 11692 23384 37999 55661 75998 111322 151996 222644 303992 445288 723593 1447186 2059457 2894372 4118914 4397219 5788744 8237828 8794438 16475656 17588876 26772941 35177752 53545882 57163847 107091764 114327694 162697103 214183528 228655388 325394206 457310776 650788412 1301576824 2115062339 4230124678 8460249356 16920498712