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23532144155 = 513615934967
BaseRepresentation
bin10101111010101000…
…000000011000011011
32020201222212210010122
4111322220000120123
5341143212103110
614451023303455
71462101632162
oct257250003033
966658783118
1023532144155
119a86311223
124688a4ab8b
1322b03ba170
1411d34503d9
1592adc7255
hex57aa0061b

23532144155 has 16 divisors (see below), whose sum is σ = 30909313344. Its totient is φ = 17092702080.

The previous prime is 23532144149. The next prime is 23532144173. The reversal of 23532144155 is 55144123532.

It is not a de Polignac number, because 23532144155 - 214 = 23532127771 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2963519 + ... + 2971448.

It is an arithmetic number, because the mean of its divisors is an integer number (1931832084).

Almost surely, 223532144155 is an apocalyptic number.

23532144155 is a deficient number, since it is larger than the sum of its proper divisors (7377169189).

23532144155 is a wasteful number, since it uses less digits than its factorization.

23532144155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5935046.

The product of its digits is 72000, while the sum is 35.

Adding to 23532144155 its reverse (55144123532), we get a palindrome (78676267687).

The spelling of 23532144155 in words is "twenty-three billion, five hundred thirty-two million, one hundred forty-four thousand, one hundred fifty-five".

Divisors: 1 5 13 61 65 305 793 3965 5934967 29674835 77154571 362032987 385772855 1810164935 4706428831 23532144155