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131418838 = 2127563919
BaseRepresentation
bin1111101010101…
…00101011010110
3100011021202202101
413311110223112
5232120400323
621012432314
73154020205
oct765245326
9304252671
10131418838
1168200a11
123801869a
13212c4535
141364d23c
15b80ddad
hex7d54ad6

131418838 has 16 divisors (see below), whose sum is σ = 199249920. Its totient is φ = 65005416.

The previous prime is 131418821. The next prime is 131418841. The reversal of 131418838 is 838814131.

It is a junction number, because it is equal to n+sod(n) for n = 131418797 and 131418806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142543 + ... + 143461.

It is an arithmetic number, because the mean of its divisors is an integer number (12453120).

Almost surely, 2131418838 is an apocalyptic number.

131418838 is a deficient number, since it is larger than the sum of its proper divisors (67831082).

131418838 is a wasteful number, since it uses less digits than its factorization.

131418838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611.

The product of its digits is 18432, while the sum is 37.

The square root of 131418838 is about 11463.8055635989. The cubic root of 131418838 is about 508.4159978318.

The spelling of 131418838 in words is "one hundred thirty-one million, four hundred eighteen thousand, eight hundred thirty-eight".

Divisors: 1 2 127 254 563 919 1126 1838 71501 116713 143002 233426 517397 1034794 65709419 131418838