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30460245421 = 46365788867
BaseRepresentation
bin11100010111100100…
…100111010110101101
32220121211022210101211
4130113210213112231
5444340310323141
621554312434421
72125555546144
oct342744472655
986554283354
1030460245421
1111a11018251
125aa10a8a11
132b4583b278
14168d61275b
15bd423cd81
hex7179275ad

30460245421 has 4 divisors (see below), whose sum is σ = 30526034752. Its totient is φ = 30394456092.

The previous prime is 30460245359. The next prime is 30460245427. The reversal of 30460245421 is 12454206403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30460245421 - 29 = 30460244909 is a prime.

It is a super-2 number, since 2×304602454212 (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 (30460245427) 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, 32893971 + ... + 32894896.

It is an arithmetic number, because the mean of its divisors is an integer number (7631508688).

Almost surely, 230460245421 is an apocalyptic number.

It is an amenable number.

30460245421 is a deficient number, since it is larger than the sum of its proper divisors (65789331).

30460245421 is an equidigital number, since it uses as much as digits as its factorization.

30460245421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65789330.

The product of its (nonzero) digits is 23040, while the sum is 31.

The spelling of 30460245421 in words is "thirty billion, four hundred sixty million, two hundred forty-five thousand, four hundred twenty-one".

Divisors: 1 463 65788867 30460245421