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105129947322 = 2325840552629
BaseRepresentation
bin110000111101000111…
…0111011000010111010
3101001100200112200000200
41201322032323002322
53210301231303242
6120143535343030
710411134544101
oct1417216730272
9331320480020
10105129947322
1140649129494
121845b981a76
139bb5568b2a
1451344ab038
152b047ae04c
hex187a3bb0ba

105129947322 has 12 divisors (see below), whose sum is σ = 227781552570. Its totient is φ = 35043315768.

The previous prime is 105129947269. The next prime is 105129947323. The reversal of 105129947322 is 223749921501.

105129947322 is a `hidden beast` number, since 1 + 0 + 512 + 99 + 47 + 3 + 2 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 89293990041 + 15835957281 = 298821^2 + 125841^2 .

It is a super-2 number, since 2×1051299473222 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105129947323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2920276297 + ... + 2920276332.

Almost surely, 2105129947322 is an apocalyptic number.

105129947322 is an abundant number, since it is smaller than the sum of its proper divisors (122651605248).

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

105129947322 is a wasteful number, since it uses less digits than its factorization.

105129947322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5840552637 (or 5840552634 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 105129947322 in words is "one hundred five billion, one hundred twenty-nine million, nine hundred forty-seven thousand, three hundred twenty-two".

Divisors: 1 2 3 6 9 18 5840552629 11681105258 17521657887 35043315774 52564973661 105129947322