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23161020609952 = 251791146734803
BaseRepresentation
bin1010100010000100110000…
…11001111111010110100000
310001000011122100102021202101
411101002120121333112200
511013432232234004302
6121132005340100144
74610220452622301
oct521023031772640
9101004570367671
1023161020609952
11741a596367275
122720916b34654
13cc00c8655664
145a0ddc41c7a8
152a271096a287
hex15109867f5a0

23161020609952 has 48 divisors (see below), whose sum is σ = 48333508175232. Its totient is φ = 10887339473920.

The previous prime is 23161020609949. The next prime is 23161020609973. The reversal of 23161020609952 is 25990602016132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22871818 + ... + 23862985.

It is an arithmetic number, because the mean of its divisors is an integer number (1006948086984).

Almost surely, 223161020609952 is an apocalyptic number.

It is an amenable number.

23161020609952 is an abundant number, since it is smaller than the sum of its proper divisors (25172487565280).

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

23161020609952 is a wasteful number, since it uses less digits than its factorization.

23161020609952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46735741 (or 46735733 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 46.

The spelling of 23161020609952 in words is "twenty-three trillion, one hundred sixty-one billion, twenty million, six hundred nine thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 16 17 32 34 68 136 272 544 911 1822 3644 7288 14576 15487 29152 30974 61948 123896 247792 495584 46734803 93469606 186939212 373878424 747756848 794491651 1495513696 1588983302 3177966604 6355933208 12711866416 25423732832 42575405533 85150811066 170301622132 340603244264 681206488528 723781894061 1362412977056 1447563788122 2895127576244 5790255152488 11580510304976 23161020609952