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34291971805 = 571375366971
BaseRepresentation
bin11111111011111101…
…011111011011011101
310021111212101122211211
4133323331133123131
51030212221044210
623430431544421
72322533644120
oct377375373335
9107455348754
1034291971805
11135a7a18a73
12679038b111
1333066333a0
1419344823b7
15d5a82438a
hex7fbf5f6dd

34291971805 has 16 divisors (see below), whose sum is σ = 50646605184. Its totient is φ = 21705687360.

The previous prime is 34291971793. The next prime is 34291971827. The reversal of 34291971805 is 50817919243.

It is a happy number.

It is not a de Polignac number, because 34291971805 - 27 = 34291971677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37683031 + ... + 37683940.

It is an arithmetic number, because the mean of its divisors is an integer number (3165412824).

Almost surely, 234291971805 is an apocalyptic number.

34291971805 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

34291971805 is a deficient number, since it is larger than the sum of its proper divisors (16354633379).

34291971805 is a wasteful number, since it uses less digits than its factorization.

34291971805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75366996.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 34291971805 in words is "thirty-four billion, two hundred ninety-one million, nine hundred seventy-one thousand, eight hundred five".

Divisors: 1 5 7 13 35 65 91 455 75366971 376834855 527568797 979770623 2637843985 4898853115 6858394361 34291971805