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30345502431 = 331332316829
BaseRepresentation
bin11100010000101110…
…111001111011011111
32220022211102020121110
4130100232321323133
5444121422034211
621535053233103
72122663341366
oct342056717337
986284366543
1030345502431
1111962277132
125a6a792793
132b27b350ca
14167c2a47dd
15bc9124ea6
hex710bb9edf

30345502431 has 8 divisors (see below), whose sum is σ = 40589938480. Its totient is φ = 20165700672.

The previous prime is 30345502427. The next prime is 30345502553. The reversal of 30345502431 is 13420554303.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30345502431 - 22 = 30345502427 is a prime.

It is a super-2 number, since 2×303455024312 (a number of 22 digits) 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 (30345502631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16157476 + ... + 16159353.

It is an arithmetic number, because the mean of its divisors is an integer number (5073742310).

Almost surely, 230345502431 is an apocalyptic number.

30345502431 is a deficient number, since it is larger than the sum of its proper divisors (10244436049).

30345502431 is a wasteful number, since it uses less digits than its factorization.

30345502431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32317145.

The product of its (nonzero) digits is 21600, while the sum is 30.

The spelling of 30345502431 in words is "thirty billion, three hundred forty-five million, five hundred two thousand, four hundred thirty-one".

Divisors: 1 3 313 939 32316829 96950487 10115167477 30345502431