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3016020431 = 7142479161
BaseRepresentation
bin1011001111000100…
…1101000111001111
321210012011201020102
42303301031013033
522134100123211
61215135441315
7134511515324
oct26361150717
97705151212
103016020431
111308512876
1270208623b
13390b03498
142087b6b4b
15129baaa3b
hexb3c4d1cf

3016020431 has 4 divisors (see below), whose sum is σ = 3058499664. Its totient is φ = 2973541200.

The previous prime is 3016020419. The next prime is 3016020433. The reversal of 3016020431 is 1340206103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1340206103 = 11311860231.

It is a cyclic number.

It is not a de Polignac number, because 3016020431 - 218 = 3015758287 is a prime.

It is a super-2 number, since 2×30160204312 = 18192758480418851522, 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 (3016020433) 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, 21239510 + ... + 21239651.

It is an arithmetic number, because the mean of its divisors is an integer number (764624916).

Almost surely, 23016020431 is an apocalyptic number.

3016020431 is a deficient number, since it is larger than the sum of its proper divisors (42479233).

3016020431 is an equidigital number, since it uses as much as digits as its factorization.

3016020431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42479232.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 3016020431 is about 54918.3068839526. The cubic root of 3016020431 is about 1444.8122872504.

Adding to 3016020431 its reverse (1340206103), we get a palindrome (4356226534).

The spelling of 3016020431 in words is "three billion, sixteen million, twenty thousand, four hundred thirty-one".

Divisors: 1 71 42479161 3016020431