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23144123144 = 234761553519
BaseRepresentation
bin10101100011011111…
…110100101100001000
32012201221202021101002
4111203133310230020
5334344343420034
614344322514132
71446350541452
oct254337645410
965657667332
1023144123144
1198a72882aa
12459ab05948
13224abb112c
141197ac72d2
15906ccce7e
hex5637f4b08

23144123144 has 16 divisors (see below), whose sum is σ = 44318534400. Its totient is φ = 11325847312.

The previous prime is 23144123113. The next prime is 23144123179. The reversal of 23144123144 is 44132144132.

It is a super-2 number, since 2×231441231442 (a number of 22 digits) contains 22 as substring.

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, 30776384 + ... + 30777135.

It is an arithmetic number, because the mean of its divisors is an integer number (2769908400).

Almost surely, 223144123144 is an apocalyptic number.

It is an amenable number.

23144123144 is a deficient number, since it is larger than the sum of its proper divisors (21174411256).

23144123144 is a wasteful number, since it uses less digits than its factorization.

23144123144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61553572 (or 61553568 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

Adding to 23144123144 its reverse (44132144132), we get a palindrome (67276267276).

The spelling of 23144123144 in words is "twenty-three billion, one hundred forty-four million, one hundred twenty-three thousand, one hundred forty-four".

Divisors: 1 2 4 8 47 94 188 376 61553519 123107038 246214076 492428152 2893015393 5786030786 11572061572 23144123144