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30555888892 = 227638972223
BaseRepresentation
bin11100011101010001…
…011101110011111100
32220212111021222120121
4130131101131303330
51000034301421032
622012010424324
72131126525114
oct343521356374
986774258517
1030555888892
1111a60003641
125b091320a4
132b5c5b7b39
14169c1cc044
15bdc831a97
hex71d45dcfc

30555888892 has 6 divisors (see below), whose sum is σ = 53472805568. Its totient is φ = 15277944444.

The previous prime is 30555888833. The next prime is 30555888899. The reversal of 30555888892 is 29888855503.

It is a self number, because there is not a number n which added to its sum of digits gives 30555888892.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30555888899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3819486108 + ... + 3819486115.

Almost surely, 230555888892 is an apocalyptic number.

It is an amenable number.

30555888892 is a deficient number, since it is larger than the sum of its proper divisors (22916916676).

30555888892 is a wasteful number, since it uses less digits than its factorization.

30555888892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7638972227 (or 7638972225 counting only the distinct ones).

The product of its (nonzero) digits is 27648000, while the sum is 61.

The spelling of 30555888892 in words is "thirty billion, five hundred fifty-five million, eight hundred eighty-eight thousand, eight hundred ninety-two".

Divisors: 1 2 4 7638972223 15277944446 30555888892