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42372131413 = 187432260691
BaseRepresentation
bin100111011101100100…
…110110101001010101
311001100222122022001111
4213131210312221111
51143234231201123
631244313455021
73030010113553
oct473544665125
9131328568044
1042372131413
1116a73a66527
128266411471
133cc3661411
14209d654bd3
15117eda590d
hex9dd936a55

42372131413 has 4 divisors (see below), whose sum is σ = 42374410848. Its totient is φ = 42369851980.

The previous prime is 42372131411. The next prime is 42372131437. The reversal of 42372131413 is 31413127324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42372131413 - 21 = 42372131411 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 (42372131411) 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, 1111603 + ... + 1149088.

It is an arithmetic number, because the mean of its divisors is an integer number (10593602712).

Almost surely, 242372131413 is an apocalyptic number.

It is an amenable number.

42372131413 is a deficient number, since it is larger than the sum of its proper divisors (2279435).

42372131413 is a wasteful number, since it uses less digits than its factorization.

42372131413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279434.

The product of its digits is 12096, while the sum is 31.

Adding to 42372131413 its reverse (31413127324), we get a palindrome (73785258737).

The spelling of 42372131413 in words is "forty-two billion, three hundred seventy-two million, one hundred thirty-one thousand, four hundred thirteen".

Divisors: 1 18743 2260691 42372131413