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30423245534 = 2114332159879
BaseRepresentation
bin11100010101010111…
…011110001011011110
32220112020201000002122
4130111113132023132
5444301322324114
621550511422542
72124626214563
oct342527361336
986466630078
1030423245534
11119a2146730
125a90824a52
132b3ac85146
14168874086a
15bd0d7ee8e
hex7155de2de

30423245534 has 16 divisors (see below), whose sum is σ = 50941249920. Its totient is φ = 13507148760.

The previous prime is 30423245513. The next prime is 30423245537. The reversal of 30423245534 is 43554232403.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30423245494 and 30423245503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30423245537) 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, 16078994 + ... + 16080885.

It is an arithmetic number, because the mean of its divisors is an integer number (3183828120).

Almost surely, 230423245534 is an apocalyptic number.

30423245534 is a deficient number, since it is larger than the sum of its proper divisors (20518004386).

30423245534 is a wasteful number, since it uses less digits than its factorization.

30423245534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32159935.

The product of its (nonzero) digits is 172800, while the sum is 35.

Adding to 30423245534 its reverse (43554232403), we get a palindrome (73977477937).

The spelling of 30423245534 in words is "thirty billion, four hundred twenty-three million, two hundred forty-five thousand, five hundred thirty-four".

Divisors: 1 2 11 22 43 86 473 946 32159879 64319758 353758669 707517338 1382874797 2765749594 15211622767 30423245534