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34774507921 = 19231275091231
BaseRepresentation
bin100000011000101110…
…001110000110010001
310022202111101000221211
4200120232032012101
51032204233223141
623550350220121
72340513304006
oct403056160621
9108674330854
1034774507921
111382533754a
1268a5ab4641
1333825b250a
14197c5ad8ad
15d87d8cd81
hex818b8e191

34774507921 has 32 divisors (see below), whose sum is σ = 38603980800. Its totient is φ = 31177016640.

The previous prime is 34774507919. The next prime is 34774507949. The reversal of 34774507921 is 12970547743.

It is not a de Polignac number, because 34774507921 - 21 = 34774507919 is a prime.

It is a super-2 number, since 2×347745079212 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34774507321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28248376 + ... + 28249606.

It is an arithmetic number, because the mean of its divisors is an integer number (1206374400).

Almost surely, 234774507921 is an apocalyptic number.

It is an amenable number.

34774507921 is a deficient number, since it is larger than the sum of its proper divisors (3829472879).

34774507921 is a wasteful number, since it uses less digits than its factorization.

34774507921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909.

The product of its (nonzero) digits is 1481760, while the sum is 49.

The spelling of 34774507921 in words is "thirty-four billion, seven hundred seventy-four million, five hundred seven thousand, nine hundred twenty-one".

Divisors: 1 19 23 127 437 509 1231 2413 2921 9671 11707 23389 28313 55499 64643 156337 222433 537947 626579 1228217 1486789 2970403 3595751 11905001 14411317 28248991 68319269 79575533 273815023 1511935127 1830237259 34774507921