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34138421841 = 343367721087
BaseRepresentation
bin11111110010110011…
…101111101001010001
310021010011110111220010
4133302303233221101
51024403413444331
623403304505133
72315660540436
oct376263575121
9107104414803
1034138421841
1113529281677
126748a7b1a9
1332b0890714
14191bd11b8d
15d4c0e2e46
hex7f2cefa51

34138421841 has 16 divisors (see below), whose sum is σ = 46703427584. Its totient is φ = 22169067984.

The previous prime is 34138421747. The next prime is 34138421929. The reversal of 34138421841 is 14812483143.

It is not a de Polignac number, because 34138421841 - 215 = 34138389073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34138421841.

It is not an unprimeable number, because it can be changed into a prime (34138422841) 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, 313201 + ... + 407886.

It is an arithmetic number, because the mean of its divisors is an integer number (2918964224).

Almost surely, 234138421841 is an apocalyptic number.

It is an amenable number.

34138421841 is a deficient number, since it is larger than the sum of its proper divisors (12565005743).

34138421841 is a wasteful number, since it uses less digits than its factorization.

34138421841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721500.

The product of its digits is 73728, while the sum is 39.

The spelling of 34138421841 in words is "thirty-four billion, one hundred thirty-eight million, four hundred twenty-one thousand, eight hundred forty-one".

Divisors: 1 3 43 129 367 1101 15781 47343 721087 2163261 31006741 93020223 264638929 793916787 11379473947 34138421841