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23351490764 = 227337617541
BaseRepresentation
bin10101101111110110…
…110111100011001100
32020021101221122021022
4111233312313203030
5340310440201024
614421051253312
71454446253000
oct255766674314
966241848238
1023351490764
1199a33426a8
12463844a238
132281b47a74
1411b7466700
1591a0e035e
hex56fdb78cc

23351490764 has 96 divisors (see below), whose sum is σ = 49753065600. Its totient is φ = 9576403200.

The previous prime is 23351490739. The next prime is 23351490769. The reversal of 23351490764 is 46709415332.

It is not an unprimeable number, because it can be changed into a prime (23351490769) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3092834 + ... + 3100374.

It is an arithmetic number, because the mean of its divisors is an integer number (518261100).

Almost surely, 223351490764 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 23351490764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24876532800).

23351490764 is an abundant number, since it is smaller than the sum of its proper divisors (26401574836).

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

23351490764 is a wasteful number, since it uses less digits than its factorization.

23351490764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7664 (or 7648 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 23351490764 in words is "twenty-three billion, three hundred fifty-one million, four hundred ninety thousand, seven hundred sixty-four".

Divisors: 1 2 4 7 14 28 37 49 61 74 98 122 148 196 244 259 343 427 518 686 854 1036 1372 1708 1813 2257 2989 3626 4514 5978 7252 7541 9028 11956 12691 15082 15799 20923 25382 30164 31598 41846 50764 52787 63196 83692 105574 110593 211148 221186 279017 369509 442372 460001 558034 739018 774151 920002 1116068 1478036 1548302 1840004 1953119 2586563 3096604 3220007 3906238 5173126 6440014 7812476 10346252 12880028 13671833 17020037 22540049 27343666 34040074 45080098 54687332 68080148 90160196 95702831 119140259 157780343 191405662 238280518 315560686 382811324 476561036 631121372 833981813 1667963626 3335927252 5837872691 11675745382 23351490764