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23290382864 = 247229707121
BaseRepresentation
bin10101101100001101…
…110000101000010000
32020010010222000222202
4111230031300220100
5340144314222424
614411025422332
71453104662600
oct255415605020
966103860882
1023290382864
1199718a5401
12461ba9a9a8
1322722a0748
1411ad2bac00
15914a6e2ae
hex56c370a10

23290382864 has 30 divisors (see below), whose sum is σ = 52492484574. Its totient is φ = 9981592320.

The previous prime is 23290382861. The next prime is 23290382903. The reversal of 23290382864 is 46828309232.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20351875600 + 2938507264 = 142660^2 + 54208^2 .

It is not an unprimeable number, because it can be changed into a prime (23290382861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14852777 + ... + 14854344.

Almost surely, 223290382864 is an apocalyptic number.

It is an amenable number.

23290382864 is an abundant number, since it is smaller than the sum of its proper divisors (29202101710).

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

23290382864 is a wasteful number, since it uses less digits than its factorization.

23290382864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29707143 (or 29707130 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 47.

The spelling of 23290382864 in words is "twenty-three billion, two hundred ninety million, three hundred eighty-two thousand, eight hundred sixty-four".

Divisors: 1 2 4 7 8 14 16 28 49 56 98 112 196 392 784 29707121 59414242 118828484 207949847 237656968 415899694 475313936 831799388 1455648929 1663598776 2911297858 3327197552 5822595716 11645191432 23290382864