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34405055131 = 79873430747
BaseRepresentation
bin100000000010101100…
…110111101010011011
310021210202011220000011
4200002230313222123
51030430143231011
623445551422351
72325406100116
oct400254675233
9107722156004
1034405055131
1113655836167
1268022249b7
133323ba7cb5
1419454bb57d
15d65710621
hex802b37a9b

34405055131 has 4 divisors (see below), whose sum is σ = 34405565752. Its totient is φ = 34404544512.

The previous prime is 34405055129. The next prime is 34405055137. The reversal of 34405055131 is 13155050443.

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 34405055131 - 21 = 34405055129 is a prime.

It is a super-2 number, since 2×344050551312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34405055093 and 34405055102.

It is not an unprimeable number, because it can be changed into a prime (34405055137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135501 + ... + 295246.

It is an arithmetic number, because the mean of its divisors is an integer number (8601391438).

Almost surely, 234405055131 is an apocalyptic number.

34405055131 is a deficient number, since it is larger than the sum of its proper divisors (510621).

34405055131 is an equidigital number, since it uses as much as digits as its factorization.

34405055131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510620.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 34405055131 in words is "thirty-four billion, four hundred five million, fifty-five thousand, one hundred thirty-one".

Divisors: 1 79873 430747 34405055131