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213197032 = 2397727277
BaseRepresentation
bin11001011010100…
…10000011101000
3112212011112100101
430231102003220
5414034301112
633053315144
75166100456
oct1455220350
9485145311
10213197032
11aa3870a4
125b495ab4
13352280b9
14204599d6
1513ab4757
hexcb520e8

213197032 has 16 divisors (see below), whose sum is σ = 400168260. Its totient is φ = 106485504.

The previous prime is 213197027. The next prime is 213197041. The reversal of 213197032 is 230791312.

It can be written as a sum of positive squares in 2 ways, for example, as 210656196 + 2540836 = 14514^2 + 1594^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5823 + ... + 21454.

Almost surely, 2213197032 is an apocalyptic number.

It is an amenable number.

213197032 is a deficient number, since it is larger than the sum of its proper divisors (186971228).

213197032 is a wasteful number, since it uses less digits than its factorization.

213197032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28260 (or 28256 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 213197032 is about 14601.2681641014. The cubic root of 213197032 is about 597.3933512961.

The spelling of 213197032 in words is "two hundred thirteen million, one hundred ninety-seven thousand, thirty-two".

Divisors: 1 2 4 8 977 1954 3908 7816 27277 54554 109108 218216 26649629 53299258 106598516 213197032