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30556524140 = 22525110615737
BaseRepresentation
bin11100011101010011…
…111000111001101100
32220212112111020222022
4130131103320321230
51000034432233030
622012032205312
72131135112132
oct343523707154
986775436868
1030556524140
1111a603a793a
125b09399838
132b5c77b01c
14169c315752
15bdc909de5
hex71d4f8e6c

30556524140 has 48 divisors (see below), whose sum is σ = 64496313504. Its totient is φ = 12160320000.

The previous prime is 30556524091. The next prime is 30556524197. The reversal of 30556524140 is 4142565503.

It is a self number, because there is not a number n which added to its sum of digits gives 30556524140.

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, 5323352 + ... + 5329088.

It is an arithmetic number, because the mean of its divisors is an integer number (1343673198).

Almost surely, 230556524140 is an apocalyptic number.

It is an amenable number.

30556524140 is an abundant number, since it is smaller than the sum of its proper divisors (33939789364).

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

30556524140 is a wasteful number, since it uses less digits than its factorization.

30556524140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7058 (or 7056 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 30556524140 in words is "thirty billion, five hundred fifty-six million, five hundred twenty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 251 502 1004 1061 1255 2122 2510 4244 5020 5305 5737 10610 11474 21220 22948 28685 57370 114740 266311 532622 1065244 1331555 1439987 2663110 2879974 5326220 5759948 6086957 7199935 12173914 14399870 24347828 28799740 30434785 60869570 121739140 1527826207 3055652414 6111304828 7639131035 15278262070 30556524140