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30555253057 = 72838219151
BaseRepresentation
bin11100011101001111…
…000010100101000001
32220212110002200101011
4130131033002211001
51000034121044212
622011545040521
72131121236300
oct343517024501
986773080334
1030555253057
1111a5a70995a
125b08a86141
132b5c4245c4
14169c0a4437
15bdc7584a7
hex71d3c2941

30555253057 has 24 divisors (see below), whose sum is σ = 36019855872. Its totient is φ = 25840332000.

The previous prime is 30555253039. The next prime is 30555253061. The reversal of 30555253057 is 75035255503.

It is a de Polignac number, because none of the positive numbers 2k-30555253057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30555253037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3334432 + ... + 3343582.

It is an arithmetic number, because the mean of its divisors is an integer number (1500827328).

Almost surely, 230555253057 is an apocalyptic number.

It is an amenable number.

30555253057 is a deficient number, since it is larger than the sum of its proper divisors (5464602815).

30555253057 is an equidigital number, since it uses as much as digits as its factorization.

30555253057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10069 (or 10062 counting only the distinct ones).

The product of its (nonzero) digits is 393750, while the sum is 40.

The spelling of 30555253057 in words is "thirty billion, five hundred fifty-five million, two hundred fifty-three thousand, fifty-seven".

Divisors: 1 7 49 83 581 821 4067 5747 9151 40229 64057 68143 448399 477001 759533 3339007 5316731 7512971 37217117 52590797 368135579 623576593 4365036151 30555253057