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23316311145 = 351738985091
BaseRepresentation
bin10101101101110000…
…101010110001101001
32020011221202022220110
4111231300222301221
5340222433424040
614413353244533
71453541242341
oct255560526151
966157668813
1023316311145
1199854a4736
124628703749
13227777b31a
1411b2909d21
15916e91980
hex56dc2ac69

23316311145 has 16 divisors (see below), whose sum is σ = 37521744192. Its totient is φ = 12363483840.

The previous prime is 23316311143. The next prime is 23316311171. The reversal of 23316311145 is 54111361332.

It is not a de Polignac number, because 23316311145 - 21 = 23316311143 is a prime.

It is a super-2 number, since 2×233163111452 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23316311143) 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, 4489951 + ... + 4495140.

It is an arithmetic number, because the mean of its divisors is an integer number (2345109012).

Almost surely, 223316311145 is an apocalyptic number.

It is an amenable number.

23316311145 is a deficient number, since it is larger than the sum of its proper divisors (14205433047).

23316311145 is a wasteful number, since it uses less digits than its factorization.

23316311145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8985272.

The product of its digits is 6480, while the sum is 30.

Adding to 23316311145 its reverse (54111361332), we get a palindrome (77427672477).

The spelling of 23316311145 in words is "twenty-three billion, three hundred sixteen million, three hundred eleven thousand, one hundred forty-five".

Divisors: 1 3 5 15 173 519 865 2595 8985091 26955273 44925455 134776365 1554420743 4663262229 7772103715 23316311145