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30423155052 = 22317413637393
BaseRepresentation
bin11100010101010111…
…001000000101101100
32220112020112101222110
4130111113020011230
5444301311430202
621550505444020
72124625360023
oct342527100554
986466471873
1030423155052
11119a2094754
125a907a0610
132b3ac52bc4
1416887198ba
15bd0d6326c
hex7155c816c

30423155052 has 48 divisors (see below), whose sum is σ = 76996356192. Its totient is φ = 9311723520.

The previous prime is 30423155003. The next prime is 30423155089. The reversal of 30423155052 is 25055132403.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1810333 + ... + 1827060.

It is an arithmetic number, because the mean of its divisors is an integer number (1604090754).

Almost surely, 230423155052 is an apocalyptic number.

It is an amenable number.

30423155052 is an abundant number, since it is smaller than the sum of its proper divisors (46573201140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30423155052 is a wasteful number, since it uses less digits than its factorization.

30423155052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3637458 (or 3637456 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 30423155052 its reverse (25055132403), we get a palindrome (55478287455).

The spelling of 30423155052 in words is "thirty billion, four hundred twenty-three million, one hundred fifty-five thousand, fifty-two".

Divisors: 1 2 3 4 6 12 17 34 41 51 68 82 102 123 164 204 246 492 697 1394 2091 2788 4182 8364 3637393 7274786 10912179 14549572 21824358 43648716 61835681 123671362 149133113 185507043 247342724 298266226 371014086 447399339 596532452 742028172 894798678 1789597356 2535262921 5070525842 7605788763 10141051684 15211577526 30423155052