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199760825 = 5211733991
BaseRepresentation
bin10111110100000…
…01101110111001
3111220212220100002
423322001232321
5402114321300
631453322345
74643640035
oct1372015671
9456786302
10199760825
11a283a2a0
1256a963b5
1332502494
141c75d1c5
151280d5d5
hexbe81bb9

199760825 has 24 divisors (see below), whose sum is σ = 270863616. Its totient is φ = 144936000.

The previous prime is 199760797. The next prime is 199760833. The reversal of 199760825 is 528067991.

It is not a de Polignac number, because 199760825 - 216 = 199695289 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 199760825.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201080 + ... + 202070.

It is an arithmetic number, because the mean of its divisors is an integer number (11285984).

Almost surely, 2199760825 is an apocalyptic number.

It is an amenable number.

199760825 is a deficient number, since it is larger than the sum of its proper divisors (71102791).

199760825 is a wasteful number, since it uses less digits than its factorization.

199760825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745 (or 1740 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 199760825 is about 14133.6769808851. The cubic root of 199760825 is about 584.5703373402.

The spelling of 199760825 in words is "one hundred ninety-nine million, seven hundred sixty thousand, eight hundred twenty-five".

Divisors: 1 5 11 25 55 275 733 991 3665 4955 8063 10901 18325 24775 40315 54505 201575 272525 726403 3632015 7990433 18160075 39952165 199760825