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30431141303 = 137222125119
BaseRepresentation
bin11100010101110101…
…100101110110110111
32220112210120011001112
4130111311211312313
5444310333010203
621551352545235
72125053301403
oct342565456667
986483504045
1030431141303
11119a6649962
125a933b221b
132b3c7bacb4
1416897d8103
15bd18de6d8
hex715d65db7

30431141303 has 4 divisors (see below), whose sum is σ = 30653266560. Its totient is φ = 30209016048.

The previous prime is 30431141269. The next prime is 30431141311. The reversal of 30431141303 is 30314113403.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30431141303 - 26 = 30431141239 is a prime.

It is a super-2 number, since 2×304311413032 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30431141003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111062423 + ... + 111062696.

It is an arithmetic number, because the mean of its divisors is an integer number (7663316640).

Almost surely, 230431141303 is an apocalyptic number.

30431141303 is a deficient number, since it is larger than the sum of its proper divisors (222125257).

30431141303 is a wasteful number, since it uses less digits than its factorization.

30431141303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222125256.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 30431141303 its reverse (30314113403), we get a palindrome (60745254706).

The spelling of 30431141303 in words is "thirty billion, four hundred thirty-one million, one hundred forty-one thousand, three hundred three".

Divisors: 1 137 222125119 30431141303