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131210213210 = 25115111399671
BaseRepresentation
bin111101000110010111…
…1001111011101011010
3110112200021011110001022
41322030233033131122
54122204303310320
6140135510122442
712323340260516
oct1721457173532
9415607143038
10131210213210
115071182123a
122151a050422
13c4b083391b
1464ca0d7146
15362e21a325
hex1e8cbcf75a

131210213210 has 16 divisors (see below), whose sum is σ = 236383598592. Its totient is φ = 52438482000.

The previous prime is 131210213209. The next prime is 131210213237. The reversal of 131210213210 is 12312012131.

It is a super-2 number, since 2×1312102132102 (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5688326 + ... + 5711345.

It is an arithmetic number, because the mean of its divisors is an integer number (14773974912).

Almost surely, 2131210213210 is an apocalyptic number.

131210213210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131210213210 is a deficient number, since it is larger than the sum of its proper divisors (105173385382).

131210213210 is a wasteful number, since it uses less digits than its factorization.

131210213210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11400829.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 131210213210 its reverse (12312012131), we get a palindrome (143522225341).

The spelling of 131210213210 in words is "one hundred thirty-one billion, two hundred ten million, two hundred thirteen thousand, two hundred ten".

Divisors: 1 2 5 10 1151 2302 5755 11510 11399671 22799342 56998355 113996710 13121021321 26242042642 65605106605 131210213210