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34405667641 = 128399267959
BaseRepresentation
bin100000000010101111…
…001101001100111001
310021210210100000012201
4200002233031030321
51030430322331031
623450012510201
72325414230632
oct400257151471
9107723300181
1034405667641
1113656114374
12680247b361
133324060a27
1419455da889
15d657d1d61
hex802bcd339

34405667641 has 4 divisors (see below), whose sum is σ = 34406064000. Its totient is φ = 34405271284.

The previous prime is 34405667591. The next prime is 34405667669. The reversal of 34405667641 is 14676650443.

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, 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 34405667641 - 215 = 34405634873 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34405667591 and 34405667600.

It is not an unprimeable number, because it can be changed into a prime (34405667441) 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, 5581 + ... + 262378.

It is an arithmetic number, because the mean of its divisors is an integer number (8601516000).

Almost surely, 234405667641 is an apocalyptic number.

It is an amenable number.

34405667641 is a deficient number, since it is larger than the sum of its proper divisors (396359).

34405667641 is a wasteful number, since it uses less digits than its factorization.

34405667641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396358.

The product of its (nonzero) digits is 1451520, while the sum is 46.

The spelling of 34405667641 in words is "thirty-four billion, four hundred five million, six hundred sixty-seven thousand, six hundred forty-one".

Divisors: 1 128399 267959 34405667641