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23303312166 = 2319204415019
BaseRepresentation
bin10101101100111111…
…000101001100100110
32020011001021220122210
4111230333011030212
5340211121442131
614412210504250
71453322612421
oct255477051446
966131256583
1023303312166
119979126382
124624295086
132274b79714
1411b0cc49b8
15915c75146
hex56cfc5326

23303312166 has 16 divisors (see below), whose sum is σ = 49059604800. Its totient is φ = 7358940648.

The previous prime is 23303312141. The next prime is 23303312167. The reversal of 23303312166 is 66121330332.

It is a super-2 number, since 2×233033121662 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23303312167) 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 7 ways as a sum of consecutive naturals, for example, 102207396 + ... + 102207623.

It is an arithmetic number, because the mean of its divisors is an integer number (3066225300).

Almost surely, 223303312166 is an apocalyptic number.

23303312166 is an abundant number, since it is smaller than the sum of its proper divisors (25756292634).

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

23303312166 is a wasteful number, since it uses less digits than its factorization.

23303312166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204415043.

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 23303312166 its reverse (66121330332), we get a palindrome (89424642498).

The spelling of 23303312166 in words is "twenty-three billion, three hundred three million, three hundred twelve thousand, one hundred sixty-six".

Divisors: 1 2 3 6 19 38 57 114 204415019 408830038 613245057 1226490114 3883885361 7767770722 11651656083 23303312166