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200428995 = 35131027841
BaseRepresentation
bin10111111001001…
…00110111000011
3111222010211220010
423330210313003
5402302211440
631515520003
74652422044
oct1374446703
9458124803
10200428995
11a31562a8
1257159003
13326a7650
141c8948cb
15128e1580
hexbf24dc3

200428995 has 16 divisors (see below), whose sum is σ = 345354912. Its totient is φ = 98672640.

The previous prime is 200428993. The next prime is 200428999. The reversal of 200428995 is 599824002.

It is not a de Polignac number, because 200428995 - 21 = 200428993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (200428993) 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, 513726 + ... + 514115.

It is an arithmetic number, because the mean of its divisors is an integer number (21584682).

Almost surely, 2200428995 is an apocalyptic number.

200428995 is a deficient number, since it is larger than the sum of its proper divisors (144925917).

200428995 is a wasteful number, since it uses less digits than its factorization.

200428995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027862.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 200428995 is about 14157.2947627716. The cubic root of 200428995 is about 585.2213787023.

The spelling of 200428995 in words is "two hundred million, four hundred twenty-eight thousand, nine hundred ninety-five".

Divisors: 1 3 5 13 15 39 65 195 1027841 3083523 5139205 13361933 15417615 40085799 66809665 200428995