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23031120044 = 2239679145109
BaseRepresentation
bin10101011100110000…
…110000000010101100
32012110002010010021002
4111130300300002230
5334131431320134
614325204455432
71443506201402
oct253460600254
965402103232
1023031120044
119849515409
1245690aa578
132230666baa
141186aad472
158ebe0a87e
hex55cc300ac

23031120044 has 12 divisors (see below), whose sum is σ = 40305753600. Its totient is φ = 11515190448.

The previous prime is 23031120023. The next prime is 23031120071. The reversal of 23031120044 is 44002113032.

It is a super-2 number, since 2×230311200442 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23031119998 and 23031120025.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86162 + ... + 231270.

It is an arithmetic number, because the mean of its divisors is an integer number (3358812800).

Almost surely, 223031120044 is an apocalyptic number.

It is an amenable number.

23031120044 is a deficient number, since it is larger than the sum of its proper divisors (17274633556).

23031120044 is a wasteful number, since it uses less digits than its factorization.

23031120044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184792 (or 184790 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 23031120044 its reverse (44002113032), we get a palindrome (67033233076).

The spelling of 23031120044 in words is "twenty-three billion, thirty-one million, one hundred twenty thousand, forty-four".

Divisors: 1 2 4 39679 79358 145109 158716 290218 580436 5757780011 11515560022 23031120044