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61110061060 = 2255357651001
BaseRepresentation
bin111000111010011100…
…011000100000000100
312211201212100202020211
4320322130120200010
52000123133423220
644023520405204
74262235643216
oct707234304004
9184655322224
1061110061060
1123a0a0443a4
12ba15776804
1359bb721459
142d5a0905b6
1518c9e24b5a
hexe3a718804

61110061060 has 24 divisors (see below), whose sum is σ = 130752472536. Its totient is φ = 23982816000.

The previous prime is 61110061037. The next prime is 61110061069. The reversal of 61110061060 is 6016001116.

It can be written as a sum of positive squares in 4 ways, for example, as 12830545984 + 48279515076 = 113272^2 + 219726^2 .

It is not an unprimeable number, because it can be changed into a prime (61110061069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28824441 + ... + 28826560.

It is an arithmetic number, because the mean of its divisors is an integer number (5448019689).

Almost surely, 261110061060 is an apocalyptic number.

It is an amenable number.

61110061060 is an abundant number, since it is smaller than the sum of its proper divisors (69642411476).

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

61110061060 is a wasteful number, since it uses less digits than its factorization.

61110061060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57651063 (or 57651061 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 61110061060 its reverse (6016001116), we get a palindrome (67126062176).

The spelling of 61110061060 in words is "sixty-one billion, one hundred ten million, sixty-one thousand, sixty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 57651001 115302002 230604004 288255005 576510010 1153020020 3055503053 6111006106 12222012212 15277515265 30555030530 61110061060