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2531161060 = 225126558053
BaseRepresentation
bin1001011011011110…
…0111001111100100
320112101211022012221
42112313213033210
520140434123220
61055055322124
7116503341211
oct22667471744
96471738187
102531161060
11108985784a
125a7820344
1331451ca4c
141a0242b08
15ec3339aa
hex96de73e4

2531161060 has 12 divisors (see below), whose sum is σ = 5315438268. Its totient is φ = 1012464416.

The previous prime is 2531161043. The next prime is 2531161069. The reversal of 2531161060 is 601611352.

It can be written as a sum of positive squares in 2 ways, for example, as 1612343716 + 918817344 = 40154^2 + 30312^2 .

It is not an unprimeable number, because it can be changed into a prime (2531161069) 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 3 ways as a sum of consecutive naturals, for example, 63279007 + ... + 63279046.

It is an arithmetic number, because the mean of its divisors is an integer number (442953189).

Almost surely, 22531161060 is an apocalyptic number.

2531161060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2531161060 is an abundant number, since it is smaller than the sum of its proper divisors (2784277208).

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

2531161060 is a wasteful number, since it uses less digits than its factorization.

2531161060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126558062 (or 126558060 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 2531161060 is about 50310.6455931545. The cubic root of 2531161060 is about 1362.8244824909.

The spelling of 2531161060 in words is "two billion, five hundred thirty-one million, one hundred sixty-one thousand, sixty".

Divisors: 1 2 4 5 10 20 126558053 253116106 506232212 632790265 1265580530 2531161060