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199529331 = 3431798641
BaseRepresentation
bin10111110010010…
…01001101110011
3111220110010210020
423321021031303
5402034414311
631444334523
74641654111
oct1371111563
9456403706
10199529331
11a26a1381
12569a4443
1332450cc1
141c6dcab1
15127b4c06
hexbe49373

199529331 has 16 divisors (see below), whose sum is σ = 273778560. Its totient is φ = 129185280.

The previous prime is 199529321. The next prime is 199529359. The reversal of 199529331 is 133925991.

It is not a de Polignac number, because 199529331 - 223 = 191140723 is a prime.

It is a super-2 number, since 2×1995293312 = 79623907858615122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (199529321) 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, 18771 + ... + 27411.

It is an arithmetic number, because the mean of its divisors is an integer number (17111160).

Almost surely, 2199529331 is an apocalyptic number.

199529331 is a deficient number, since it is larger than the sum of its proper divisors (74249229).

199529331 is a wasteful number, since it uses less digits than its factorization.

199529331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8866.

The product of its digits is 65610, while the sum is 42.

The square root of 199529331 is about 14125.4851598096. The cubic root of 199529331 is about 584.3444391388.

The spelling of 199529331 in words is "one hundred ninety-nine million, five hundred twenty-nine thousand, three hundred thirty-one".

Divisors: 1 3 43 129 179 537 7697 8641 23091 25923 371563 1114689 1546739 4640217 66509777 199529331