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8402148319231 = 10218078222833
BaseRepresentation
bin111101001000100011100…
…0100001101111111111111
31002202020102011101200211001
41322101013010031333333
52100130044432203411
625511521010111131
71525015032221512
oct172210704157777
932666364350731
108402148319231
11274a370756677
12b3848657b4a7
1348c41c33a6c4
14210947ca8d79
15e885c26cdc1
hex7a44710dfff

8402148319231 has 4 divisors (see below), whose sum is σ = 8402157563872. Its totient is φ = 8402139074592.

The previous prime is 8402148319181. The next prime is 8402148319261. The reversal of 8402148319231 is 1329138412048.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8402148319231 - 29 = 8402148318719 is a prime.

It is a super-2 number, since 2×84021483192312 (a number of 27 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 (8402148319261) 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, 3089610 + ... + 5133223.

It is an arithmetic number, because the mean of its divisors is an integer number (2100539390968).

Almost surely, 28402148319231 is an apocalyptic number.

8402148319231 is a deficient number, since it is larger than the sum of its proper divisors (9244641).

8402148319231 is a wasteful number, since it uses less digits than its factorization.

8402148319231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9244640.

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 8402148319231 in words is "eight trillion, four hundred two billion, one hundred forty-eight million, three hundred nineteen thousand, two hundred thirty-one".

Divisors: 1 1021807 8222833 8402148319231