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202232149 = 728890307
BaseRepresentation
bin11000000110111…
…01000101010101
3112002112110100121
430003131011111
5403232412044
632022311541
75003642050
oct1403350525
9462473317
10202232149
11a4178009
12578885b1
1332b892c2
141cc03a97
1512b4a984
hexc0dd155

202232149 has 4 divisors (see below), whose sum is σ = 231122464. Its totient is φ = 173341836.

The previous prime is 202232113. The next prime is 202232159. The reversal of 202232149 is 941232202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 202232149 - 217 = 202101077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202232159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14445147 + ... + 14445160.

It is an arithmetic number, because the mean of its divisors is an integer number (57780616).

Almost surely, 2202232149 is an apocalyptic number.

It is an amenable number.

202232149 is a deficient number, since it is larger than the sum of its proper divisors (28890315).

202232149 is an equidigital number, since it uses as much as digits as its factorization.

202232149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28890314.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 202232149 is about 14220.8350317413. The cubic root of 202232149 is about 586.9711180548.

The spelling of 202232149 in words is "two hundred two million, two hundred thirty-two thousand, one hundred forty-nine".

Divisors: 1 7 28890307 202232149