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131400030 = 2354380001
BaseRepresentation
bin1111101010100…
…00000101011110
3100011020210221210
413311100011132
5232114300110
621012205250
73153611316
oct765200536
9304223853
10131400030
1168198873
1238009826
13212b8ac8
1413646446
15b808520
hex7d5015e

131400030 has 16 divisors (see below), whose sum is σ = 315360144. Its totient is φ = 35040000.

The previous prime is 131400019. The next prime is 131400037. The reversal of 131400030 is 30004131.

It is a junction number, because it is equal to n+sod(n) for n = 131399979 and 131400015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131400037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2189971 + ... + 2190030.

It is an arithmetic number, because the mean of its divisors is an integer number (19710009).

Almost surely, 2131400030 is an apocalyptic number.

131400030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131400030 is an abundant number, since it is smaller than the sum of its proper divisors (183960114).

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

131400030 is a wasteful number, since it uses less digits than its factorization.

131400030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4380011.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 131400030 is about 11462.9852132854. The cubic root of 131400030 is about 508.3917426985.

Adding to 131400030 its reverse (30004131), we get a palindrome (161404161).

The spelling of 131400030 in words is "one hundred thirty-one million, four hundred thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 4380001 8760002 13140003 21900005 26280006 43800010 65700015 131400030