[go: up one dir, main page]

Search a number
-
+
131033461 = 13231014339
BaseRepresentation
bin1111100111101…
…10100101110101
3100010120012010011
413303312211311
5232021032321
621000300221
73150523516
oct763664565
9303505104
10131033461
1167a68419
1237a71671
13211bacc0
141358ca0d
15b784ae1
hex7cf6975

131033461 has 16 divisors (see below), whose sum is σ = 148740480. Its totient is φ = 114523200.

The previous prime is 131033459. The next prime is 131033471. The reversal of 131033461 is 164330131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 131033461 - 21 = 131033459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131033401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28030 + ... + 32368.

It is an arithmetic number, because the mean of its divisors is an integer number (9296280).

Almost surely, 2131033461 is an apocalyptic number.

It is an amenable number.

131033461 is a deficient number, since it is larger than the sum of its proper divisors (17707019).

131033461 is a wasteful number, since it uses less digits than its factorization.

131033461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4476.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 131033461 is about 11446.9847995007. The cubic root of 131033461 is about 507.9185459022.

Adding to 131033461 its reverse (164330131), we get a palindrome (295363592).

The spelling of 131033461 in words is "one hundred thirty-one million, thirty-three thousand, four hundred sixty-one".

Divisors: 1 13 23 101 299 1313 2323 4339 30199 56407 99797 438239 1297361 5697107 10079497 131033461