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131455412 = 22112987623
BaseRepresentation
bin1111101010111…
…01100110110100
3100011100121220222
413311131212310
5232123033122
621013313512
73154231634
oct765354664
9304317828
10131455412
1168226440
1238035898
132130808a
141365c6c4
15b819b42
hex7d5d9b4

131455412 has 12 divisors (see below), whose sum is σ = 250960416. Its totient is φ = 59752440.

The previous prime is 131455411. The next prime is 131455451. The reversal of 131455412 is 214554131.

131455412 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131455411) 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 3 ways as a sum of consecutive naturals, for example, 1493768 + ... + 1493855.

It is an arithmetic number, because the mean of its divisors is an integer number (20913368).

Almost surely, 2131455412 is an apocalyptic number.

It is an amenable number.

131455412 is a deficient number, since it is larger than the sum of its proper divisors (119505004).

131455412 is a wasteful number, since it uses less digits than its factorization.

131455412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2987638 (or 2987636 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 131455412 is about 11465.4006471645. The cubic root of 131455412 is about 508.4631576918.

It can be divided in two parts, 1 and 31455412, that added together give a palindrome (31455413).

The spelling of 131455412 in words is "one hundred thirty-one million, four hundred fifty-five thousand, four hundred twelve".

Divisors: 1 2 4 11 22 44 2987623 5975246 11950492 32863853 65727706 131455412