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131033012 = 2211127131179
BaseRepresentation
bin1111100111101…
…10011110110100
3100010120011111112
413303312132310
5232021024022
621000254152
73150522305
oct763663664
9303504445
10131033012
1167a68050
1237a71358
13211baa36
141358c7ac
15b7848e2
hex7cf67b4

131033012 has 48 divisors (see below), whose sum is σ = 255467520. Its totient is φ = 58312800.

The previous prime is 131033011. The next prime is 131033027. The reversal of 131033012 is 210330131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131033011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 731939 + ... + 732117.

It is an arithmetic number, because the mean of its divisors is an integer number (5322240).

Almost surely, 2131033012 is an apocalyptic number.

It is an amenable number.

131033012 is a deficient number, since it is larger than the sum of its proper divisors (124434508).

131033012 is a wasteful number, since it uses less digits than its factorization.

131033012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 131033012 is about 11446.9651873324. The cubic root of 131033012 is about 507.9179657561.

Adding to 131033012 its reverse (210330131), we get a palindrome (341363143).

It can be divided in two parts, 1 and 31033012, that added together give a palindrome (31033013).

The spelling of 131033012 in words is "one hundred thirty-one million, thirty-three thousand, twelve".

Divisors: 1 2 4 11 22 44 127 131 179 254 262 358 508 524 716 1397 1441 1969 2794 2882 3938 5588 5764 7876 16637 22733 23449 33274 45466 46898 66548 90932 93796 183007 250063 257939 366014 500126 515878 732028 1000252 1031756 2978023 5956046 11912092 32758253 65516506 131033012