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30431012330 = 255951577987
BaseRepresentation
bin11100010101110101…
…000110010111101010
32220112210022121010202
4130111311012113222
5444310314343310
621551350112202
72125052223365
oct342565062752
986483277122
1030431012330
11119a6570a74
125a9334b662
132b3c774394
1416897a30dc
15bd18b63a5
hex715d465ea

30431012330 has 16 divisors (see below), whose sum is σ = 55704227040. Its totient is φ = 11966092752.

The previous prime is 30431012257. The next prime is 30431012363. The reversal of 30431012330 is 3321013403.

It is a super-2 number, since 2×304310123302 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25788404 + ... + 25789583.

It is an arithmetic number, because the mean of its divisors is an integer number (3481514190).

Almost surely, 230431012330 is an apocalyptic number.

30431012330 is a deficient number, since it is larger than the sum of its proper divisors (25273214710).

30431012330 is a wasteful number, since it uses less digits than its factorization.

30431012330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51578053.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30431012330 its reverse (3321013403), we get a palindrome (33752025733).

The spelling of 30431012330 in words is "thirty billion, four hundred thirty-one million, twelve thousand, three hundred thirty".

Divisors: 1 2 5 10 59 118 295 590 51577987 103155974 257889935 515779870 3043101233 6086202466 15215506165 30431012330