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220929201 = 342727521
BaseRepresentation
bin11010010101100…
…01110010110001
3120101201100220000
431022301302301
5423024213301
633531140213
75321603313
oct1512616261
9511640800
10220929201
11103788419
1261ba4669
1336a0464c
14214ad7b3
15145e0786
hexd2b1cb1

220929201 has 10 divisors (see below), whose sum is σ = 330030162. Its totient is φ = 147286080.

The previous prime is 220929199. The next prime is 220929211. The reversal of 220929201 is 102929022.

220929201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 203490225 + 17438976 = 14265^2 + 4176^2 .

It is not a de Polignac number, because 220929201 - 21 = 220929199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (220929211) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1363680 + ... + 1363841.

Almost surely, 2220929201 is an apocalyptic number.

It is an amenable number.

220929201 is a deficient number, since it is larger than the sum of its proper divisors (109100961).

220929201 is an equidigital number, since it uses as much as digits as its factorization.

220929201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2727533 (or 2727524 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 220929201 is about 14863.6873285198. The cubic root of 220929201 is about 604.5297906000.

The spelling of 220929201 in words is "two hundred twenty million, nine hundred twenty-nine thousand, two hundred one".

Divisors: 1 3 9 27 81 2727521 8182563 24547689 73643067 220929201