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30245784436 = 2272937248503
BaseRepresentation
bin11100001010110010…
…100000101101110100
32220001212210001020101
4130022302200231310
5443420410100221
621521132043444
72120342632360
oct341262405564
986055701211
1030245784436
1111910a5856a
125a41303584
132b1028ca8a
14166cd482a0
15bc04c8d91
hex70aca0b74

30245784436 has 24 divisors (see below), whose sum is σ = 62577486720. Its totient is φ = 12515496672.

The previous prime is 30245784433. The next prime is 30245784451. The reversal of 30245784436 is 63448754203.

It is a super-2 number, since 2×302457844362 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30245784431) 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, 18623440 + ... + 18625063.

It is an arithmetic number, because the mean of its divisors is an integer number (2607395280).

Almost surely, 230245784436 is an apocalyptic number.

It is an amenable number.

30245784436 is an abundant number, since it is smaller than the sum of its proper divisors (32331702284).

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

30245784436 is a wasteful number, since it uses less digits than its factorization.

30245784436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37248543 (or 37248541 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 46.

The spelling of 30245784436 in words is "thirty billion, two hundred forty-five million, seven hundred eighty-four thousand, four hundred thirty-six".

Divisors: 1 2 4 7 14 28 29 58 116 203 406 812 37248503 74497006 148994012 260739521 521479042 1042958084 1080206587 2160413174 4320826348 7561446109 15122892218 30245784436