Search a number
-
+
131214744 = 23321822427
BaseRepresentation
bin1111101001000…
…10110110011000
3100010220101210100
413310202312120
5232042332434
621004215400
73152210163
oct764426630
9303811710
10131214744
1168081641
1237b3a560
132125267b
14135d8ada
15b7bd699
hex7d22d98

131214744 has 24 divisors (see below), whose sum is σ = 355373460. Its totient is φ = 43738224.

The previous prime is 131214737. The next prime is 131214751. The reversal of 131214744 is 447412131.

It is an interprime number because it is at equal distance from previous prime (131214737) and next prime (131214751).

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 911142 + ... + 911285.

Almost surely, 2131214744 is an apocalyptic number.

It is an amenable number.

131214744 is an abundant number, since it is smaller than the sum of its proper divisors (224158716).

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

131214744 is a wasteful number, since it uses less digits than its factorization.

131214744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822439 (or 1822432 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 131214744 is about 11454.9004360579. The cubic root of 131214744 is about 508.1526707516.

Adding to 131214744 its reverse (447412131), we get a palindrome (578626875).

The spelling of 131214744 in words is "one hundred thirty-one million, two hundred fourteen thousand, seven hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 1822427 3644854 5467281 7289708 10934562 14579416 16401843 21869124 32803686 43738248 65607372 131214744