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2131131302 = 26471646933
BaseRepresentation
bin111111100000110…
…0111101110100110
312111112002200112222
41333001213232212
513331032200202
6551245312342
7103545213536
oct17701475646
95445080488
102131131302
119a3a71543
124b58656b2
1327c69aa51
141630714c6
15c71664a2
hex7f067ba6

2131131302 has 8 divisors (see below), whose sum is σ = 3201639696. Its totient is φ = 1063918072.

The previous prime is 2131131287. The next prime is 2131131307. The reversal of 2131131302 is 2031311312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131131307) 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, 822173 + ... + 824760.

It is an arithmetic number, because the mean of its divisors is an integer number (400204962).

Almost surely, 22131131302 is an apocalyptic number.

2131131302 is a deficient number, since it is larger than the sum of its proper divisors (1070508394).

2131131302 is a wasteful number, since it uses less digits than its factorization.

2131131302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647582.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2131131302 is about 46164.1776922323. The cubic root of 2131131302 is about 1286.8761024331.

Adding to 2131131302 its reverse (2031311312), we get a palindrome (4162442614).

The spelling of 2131131302 in words is "two billion, one hundred thirty-one million, one hundred thirty-one thousand, three hundred two".

Divisors: 1 2 647 1294 1646933 3293866 1065565651 2131131302