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942430381 = 1949601599
BaseRepresentation
bin111000001011000…
…101100010101101
32102200100102102221
4320023011202231
53412230233011
6233303315341
732232345304
oct7013054255
92380312387
10942430381
11443a82992
1222374bb51
13120331519
148d24343b
1557b0d971
hex382c58ad

942430381 has 4 divisors (see below), whose sum is σ = 992032000. Its totient is φ = 892828764.

The previous prime is 942430331. The next prime is 942430397. The reversal of 942430381 is 183034249.

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 942430381 - 227 = 808212653 is a prime.

It is a super-2 number, since 2×9424303812 = 1776350046063610322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (942430301) 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, 24800781 + ... + 24800818.

It is an arithmetic number, because the mean of its divisors is an integer number (248008000).

Almost surely, 2942430381 is an apocalyptic number.

It is an amenable number.

942430381 is a deficient number, since it is larger than the sum of its proper divisors (49601619).

942430381 is a wasteful number, since it uses less digits than its factorization.

942430381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49601618.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 942430381 is about 30699.0289911587. The cubic root of 942430381 is about 980.4296259406.

The spelling of 942430381 in words is "nine hundred forty-two million, four hundred thirty thousand, three hundred eighty-one".

Divisors: 1 19 49601599 942430381