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131032313202 = 23714945745817
BaseRepresentation
bin111101000001000100…
…0100110110101110010
3110112012212102012010010
41322002020212311302
54121323233010302
6140110113115350
712316050166560
oct1720210466562
9415185365103
10131032313202
115063036333a
122148a558b56
13c482a1684b
1464b0628a30
15361d7c916c
hex1e82226d72

131032313202 has 64 divisors (see below), whose sum is σ = 302178873600. Its totient is φ = 37104362496.

The previous prime is 131032313201. The next prime is 131032313303. The reversal of 131032313202 is 202313230131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (131032313201) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2836998 + ... + 2882814.

It is an arithmetic number, because the mean of its divisors is an integer number (4721544900).

Almost surely, 2131032313202 is an apocalyptic number.

131032313202 is an abundant number, since it is smaller than the sum of its proper divisors (171146560398).

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

131032313202 is a wasteful number, since it uses less digits than its factorization.

131032313202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46435.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 131032313202 its reverse (202313230131), we get a palindrome (333345543333).

The spelling of 131032313202 in words is "one hundred thirty-one billion, thirty-two million, three hundred thirteen thousand, two hundred two".

Divisors: 1 2 3 6 7 14 21 42 149 298 447 457 894 914 1043 1371 2086 2742 3129 3199 6258 6398 9597 19194 45817 68093 91634 136186 137451 204279 274902 320719 408558 476651 641438 953302 962157 1429953 1924314 2859906 6826733 13653466 20480199 20938369 40960398 41876738 47787131 62815107 95574262 125630214 143361393 146568583 286722786 293137166 439705749 879411498 3119816981 6239633962 9359450943 18718901886 21838718867 43677437734 65516156601 131032313202