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207231049 = 1567132247
BaseRepresentation
bin11000101101000…
…01100001001001
3112102221102120001
430112201201021
5411022343144
632321403001
75064302104
oct1426414111
9472842501
10207231049
11a6a81833
1259499461
1333c1972c
141d74573b
15132d6bd4
hexc5a1849

207231049 has 4 divisors (see below), whose sum is σ = 207364864. Its totient is φ = 207097236.

The previous prime is 207231047. The next prime is 207231053. The reversal of 207231049 is 940132702.

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 207231049 - 21 = 207231047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (207231047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64557 + ... + 67690.

It is an arithmetic number, because the mean of its divisors is an integer number (51841216).

Almost surely, 2207231049 is an apocalyptic number.

It is an amenable number.

207231049 is a deficient number, since it is larger than the sum of its proper divisors (133815).

207231049 is a wasteful number, since it uses less digits than its factorization.

207231049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133814.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 207231049 is about 14395.5218384052. The cubic root of 207231049 is about 591.7681792982.

The spelling of 207231049 in words is "two hundred seven million, two hundred thirty-one thousand, forty-nine".

Divisors: 1 1567 132247 207231049