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30420430232 = 2313755749831
BaseRepresentation
bin11100010101001100…
…101110110110011000
32220112001101222020012
4130111030232312120
5444300112231412
621550331221052
72124563250653
oct342514566630
986461358205
1030420430232
11119a05a3535
125a8b8a7788
132b3a50a89a
14168820a89a
15bd09c5c22
hex71532ed98

30420430232 has 32 divisors (see below), whose sum is σ = 57558949920. Its totient is φ = 15071781120.

The previous prime is 30420430217. The next prime is 30420430247. The reversal of 30420430232 is 23203402403.

It is an interprime number because it is at equal distance from previous prime (30420430217) and next prime (30420430247).

It is a junction number, because it is equal to n+sod(n) for n = 30420430198 and 30420430207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 585557 + ... + 635387.

It is an arithmetic number, because the mean of its divisors is an integer number (1798717185).

Almost surely, 230420430232 is an apocalyptic number.

It is an amenable number.

30420430232 is a deficient number, since it is larger than the sum of its proper divisors (27138519688).

30420430232 is a wasteful number, since it uses less digits than its factorization.

30420430232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50531 (or 50527 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 30420430232 its reverse (23203402403), we get a palindrome (53623832635).

The spelling of 30420430232 in words is "thirty billion, four hundred twenty million, four hundred thirty thousand, two hundred thirty-two".

Divisors: 1 2 4 8 137 274 548 557 1096 1114 2228 4456 49831 76309 99662 152618 199324 305236 398648 610472 6826847 13653694 27307388 27755867 54614776 55511734 111023468 222046936 3802553779 7605107558 15210215116 30420430232