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20336910968 = 23112913957331
BaseRepresentation
bin10010111100001011…
…001010001001111000
31221111022111010012202
4102330023022021320
5313122222122333
613202002325332
71316652614423
oct227413121170
957438433182
1020336910968
118696724240
123b36959848
131bc142a23a
14dacd469ba
157e061b5e8
hex4bc2ca278

20336910968 has 64 divisors (see below), whose sum is σ = 43342992000. Its totient is φ = 8860924800.

The previous prime is 20336910967. The next prime is 20336910973. The reversal of 20336910968 is 86901963302.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20336910967) 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, 326063 + ... + 383393.

It is an arithmetic number, because the mean of its divisors is an integer number (677234250).

Almost surely, 220336910968 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 20336910968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21671496000).

20336910968 is an abundant number, since it is smaller than the sum of its proper divisors (23006081032).

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

20336910968 is a wasteful number, since it uses less digits than its factorization.

20336910968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57516 (or 57512 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 47.

The spelling of 20336910968 in words is "twenty billion, three hundred thirty-six million, nine hundred ten thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 11 22 29 44 58 88 116 139 232 278 319 556 638 1112 1276 1529 2552 3058 4031 6116 8062 12232 16124 32248 44341 57331 88682 114662 177364 229324 354728 458648 630641 1261282 1662599 2522564 3325198 5045128 6650396 7969009 13300792 15938018 18288589 31876036 36577178 63752072 73154356 87659099 146308712 175318198 231101261 350636396 462202522 701272792 924405044 1848810088 2542113871 5084227742 10168455484 20336910968