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23340668568857 = 135836317182939
BaseRepresentation
bin1010100111010011011000…
…10000100100010100011001
310001122100100022202011101222
411103221230100210110121
511024403142123200412
6121350315523221425
74626210345234443
oct523515420442431
9101570308664358
1023340668568857
1174897a3a0a7a2
12274b6b2817875
13100402837a963
145a99a1579493
152a72272d5072
hex153a6c424519

23340668568857 has 4 divisors (see below), whose sum is σ = 23340687110160. Its totient is φ = 23340650027556.

The previous prime is 23340668568853. The next prime is 23340668568989. The reversal of 23340668568857 is 75886586604332.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23340668568857 - 22 = 23340668568853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23340668568851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7233107 + ... + 9949832.

It is an arithmetic number, because the mean of its divisors is an integer number (5835171777540).

Almost surely, 223340668568857 is an apocalyptic number.

It is an amenable number.

23340668568857 is a deficient number, since it is larger than the sum of its proper divisors (18541303).

23340668568857 is a wasteful number, since it uses less digits than its factorization.

23340668568857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18541302.

The product of its (nonzero) digits is 1393459200, while the sum is 71.

The spelling of 23340668568857 in words is "twenty-three trillion, three hundred forty billion, six hundred sixty-eight million, five hundred sixty-eight thousand, eight hundred fifty-seven".

Divisors: 1 1358363 17182939 23340668568857