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131200233222 = 23149463731649
BaseRepresentation
bin111101000110000100…
…1001010111100000110
3110112122120101102002010
41322030021022330012
54122144224430342
6140134512155050
712323156403402
oct1721411127406
9415576342063
10131200233222
1150707125113
1221516838a86
13c4ab74b1c6
1464c8a5a102
15362d3e829c
hex1e8c24af06

131200233222 has 32 divisors (see below), whose sum is σ = 264226860000. Its totient is φ = 43429157888.

The previous prime is 131200233211. The next prime is 131200233337. The reversal of 131200233222 is 222332002131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4129654 + ... + 4161302.

It is an arithmetic number, because the mean of its divisors is an integer number (8257089375).

Almost surely, 2131200233222 is an apocalyptic number.

131200233222 is an abundant number, since it is smaller than the sum of its proper divisors (133026626778).

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

131200233222 is a wasteful number, since it uses less digits than its factorization.

131200233222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36440.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 131200233222 its reverse (222332002131), we get a palindrome (353532235353).

The spelling of 131200233222 in words is "one hundred thirty-one billion, two hundred million, two hundred thirty-three thousand, two hundred twenty-two".

Divisors: 1 2 3 6 149 298 447 894 4637 9274 13911 27822 31649 63298 94947 189894 690913 1381826 2072739 4145478 4715701 9431402 14147103 28294206 146756413 293512826 440269239 880538478 21866705537 43733411074 65600116611 131200233222