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131412112 = 2413631789
BaseRepresentation
bin1111101010100…
…11000010010000
3100011021102112021
413311103002100
5232120141422
621012341224
73153661456
oct765230220
9304242467
10131412112
11681a6957
1238014814
13212c1460
141364a9d6
15b80bdc7
hex7d53090

131412112 has 20 divisors (see below), whose sum is σ = 274196860. Its totient is φ = 60651648.

The previous prime is 131412101. The next prime is 131412119. The reversal of 131412112 is 211214131.

It can be written as a sum of positive squares in 2 ways, for example, as 43877376 + 87534736 = 6624^2 + 9356^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (131412119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315687 + ... + 316102.

It is an arithmetic number, because the mean of its divisors is an integer number (13709843).

Almost surely, 2131412112 is an apocalyptic number.

It is an amenable number.

131412112 is an abundant number, since it is smaller than the sum of its proper divisors (142784748).

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

131412112 is a wasteful number, since it uses less digits than its factorization.

131412112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631810 (or 631804 counting only the distinct ones).

The product of its digits is 48, while the sum is 16.

The square root of 131412112 is about 11463.5122017643. The cubic root of 131412112 is about 508.4073241277.

Adding to 131412112 its reverse (211214131), we get a palindrome (342626243).

The spelling of 131412112 in words is "one hundred thirty-one million, four hundred twelve thousand, one hundred twelve".

Divisors: 1 2 4 8 13 16 26 52 104 208 631789 1263578 2527156 5054312 8213257 10108624 16426514 32853028 65706056 131412112