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30423041031 = 341353370009
BaseRepresentation
bin11100010101010110…
…101100010000000111
32220112020022121120110
4130111112230100013
5444301244303111
621550503204103
72124624403425
oct342526542007
986466277513
1030423041031
11119a2017019
125a90746633
132b3ac13036
1416886ca115
15bd0d3e5a6
hex7155ac407

30423041031 has 16 divisors (see below), whose sum is σ = 41565777120. Its totient is φ = 19781460480.

The previous prime is 30423041023. The next prime is 30423041059. The reversal of 30423041031 is 13014032403.

It is not a de Polignac number, because 30423041031 - 23 = 30423041023 is a prime.

It is a super-2 number, since 2×304230410312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30423040989 and 30423041007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30423048031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 399555 + ... + 469563.

It is an arithmetic number, because the mean of its divisors is an integer number (2597861070).

Almost surely, 230423041031 is an apocalyptic number.

30423041031 is a deficient number, since it is larger than the sum of its proper divisors (11142736089).

30423041031 is a wasteful number, since it uses less digits than its factorization.

30423041031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73586.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 30423041031 its reverse (13014032403), we get a palindrome (43437073434).

The spelling of 30423041031 in words is "thirty billion, four hundred twenty-three million, forty-one thousand, thirty-one".

Divisors: 1 3 41 123 3533 10599 70009 144853 210027 434559 2870369 8611107 247341797 742025391 10141013677 30423041031