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2131120130 = 25894495333
BaseRepresentation
bin111111100000110…
…0101000000000010
312111112002010020012
41333001211000002
513331031321010
6551245144522
7103545136136
oct17701450002
95445063205
102131120130
119a3a64107
124b585b142
1327c695939
1416306b3c6
15c7163005
hex7f065002

2131120130 has 32 divisors (see below), whose sum is σ = 3888486000. Its totient is φ = 840835072.

The previous prime is 2131120111. The next prime is 2131120133. The reversal of 2131120130 is 310211312.

It can be written as a sum of positive squares in 8 ways, for example, as 1449857929 + 681262201 = 38077^2 + 26101^2 .

It is not an unprimeable number, because it can be changed into a prime (2131120133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 396944 + ... + 402276.

Almost surely, 22131120130 is an apocalyptic number.

2131120130 is a deficient number, since it is larger than the sum of its proper divisors (1757365870).

2131120130 is a wasteful number, since it uses less digits than its factorization.

2131120130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5878.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2131120130 is about 46164.0566891602. The cubic root of 2131120130 is about 1286.8738537050.

Adding to 2131120130 its reverse (310211312), we get a palindrome (2441331442).

The spelling of 2131120130 in words is "two billion, one hundred thirty-one million, one hundred twenty thousand, one hundred thirty".

Divisors: 1 2 5 10 89 178 445 449 890 898 2245 4490 5333 10666 26665 39961 53330 79922 199805 399610 474637 949274 2373185 2394517 4746370 4789034 11972585 23945170 213112013 426224026 1065560065 2131120130