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2131310302 = 211797121553
BaseRepresentation
bin111111100001001…
…0011011011011110
312111112102210002121
41333002103123132
513331103412202
6551253213154
7103546560442
oct17702233336
95445383077
102131310302
119a4083a80
124b59311ba
1327c731374
141630ba822
15c719e537
hex7f0936de

2131310302 has 16 divisors (see below), whose sum is σ = 3492003312. Its totient is φ = 967553920.

The previous prime is 2131310261. The next prime is 2131310329. The reversal of 2131310302 is 2030131312.

It is a super-2 number, since 2×21313103022 = 9084967206822662408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 43243 + ... + 78310.

It is an arithmetic number, because the mean of its divisors is an integer number (218250207).

Almost surely, 22131310302 is an apocalyptic number.

2131310302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2131310302 is a deficient number, since it is larger than the sum of its proper divisors (1360693010).

2131310302 is a wasteful number, since it uses less digits than its factorization.

2131310302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122363.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2131310302 is about 46166.1163842054. The cubic root of 2131310302 is about 1286.9121309302.

Adding to 2131310302 its reverse (2030131312), we get a palindrome (4161441614).

The spelling of 2131310302 in words is "two billion, one hundred thirty-one million, three hundred ten thousand, three hundred two".

Divisors: 1 2 11 22 797 1594 8767 17534 121553 243106 1337083 2674166 96877741 193755482 1065655151 2131310302