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23134432100 = 22521397183461
BaseRepresentation
bin10101100010111010…
…110110101101100100
32012201021111220202112
4111202322312231210
5334334403311400
614343335100152
71446202266623
oct254272665544
965637456675
1023134432100
1198a186927a
124597811658
132248b9a0a0
1411966c36ba
15906016835
hex562eb6b64

23134432100 has 72 divisors (see below), whose sum is σ = 54621040488. Its totient is φ = 8453836800.

The previous prime is 23134432043. The next prime is 23134432103. The reversal of 23134432100 is 123443132.

It can be written as a sum of positive squares in 12 ways, for example, as 7653100324 + 15481331776 = 87482^2 + 124424^2 .

It is not an unprimeable number, because it can be changed into a prime (23134432103) 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 23 ways as a sum of consecutive naturals, for example, 34370 + ... + 217830.

Almost surely, 223134432100 is an apocalyptic number.

23134432100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23134432100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27310520244).

23134432100 is an abundant number, since it is smaller than the sum of its proper divisors (31486608388).

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

23134432100 is a wasteful number, since it uses less digits than its factorization.

23134432100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183585 (or 183578 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 23134432100 its reverse (123443132), we get a palindrome (23257875232).

The spelling of 23134432100 in words is "twenty-three billion, one hundred thirty-four million, four hundred thirty-two thousand, one hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 97 100 130 194 260 325 388 485 650 970 1261 1300 1940 2425 2522 4850 5044 6305 9700 12610 25220 31525 63050 126100 183461 366922 733844 917305 1834610 2384993 3669220 4586525 4769986 9173050 9539972 11924965 17795717 18346100 23849930 35591434 47699860 59624825 71182868 88978585 119249650 177957170 231344321 238499300 355914340 444892925 462688642 889785850 925377284 1156721605 1779571700 2313443210 4626886420 5783608025 11567216050 23134432100