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30315947534 = 219249185517
BaseRepresentation
bin11100001110111110…
…001010011000001110
32220020202210200220122
4130032332022120032
5444041340310114
621532115544542
72122154205455
oct341676123016
986222720818
1030315947534
11119476200a4
125a608bb152
132b219878c2
1416783adb9c
15bc6737e8e
hex70ef8a60e

30315947534 has 24 divisors (see below), whose sum is σ = 48091560408. Its totient is φ = 14330771280.

The previous prime is 30315947483. The next prime is 30315947551. The reversal of 30315947534 is 43574951303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 311744 + ... + 397260.

It is an arithmetic number, because the mean of its divisors is an integer number (2003815017).

Almost surely, 230315947534 is an apocalyptic number.

30315947534 is a deficient number, since it is larger than the sum of its proper divisors (17775612874).

30315947534 is a wasteful number, since it uses less digits than its factorization.

30315947534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86048 (or 86029 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 44.

The spelling of 30315947534 in words is "thirty billion, three hundred fifteen million, nine hundred forty-seven thousand, five hundred thirty-four".

Divisors: 1 2 19 38 361 491 722 982 9329 18658 85517 171034 177251 354502 1624823 3249646 30871637 41988847 61743274 83977694 797788093 1595576186 15157973767 30315947534