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202287423 = 3132398989
BaseRepresentation
bin11000000111010…
…10100100111111
3112002122021011210
430003222210333
5403241144143
632023415503
75004262152
oct1403524477
9462567153
10202287423
11a4205598
12578b4593
1332ba8500
141cc19c99
1512b5c033
hexc0ea93f

202287423 has 12 divisors (see below), whose sum is σ = 292060680. Its totient is φ = 124484256.

The previous prime is 202287413. The next prime is 202287427. The reversal of 202287423 is 324782202.

It is not a de Polignac number, because 202287423 - 26 = 202287359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202287427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198988 + ... + 200001.

It is an arithmetic number, because the mean of its divisors is an integer number (24338390).

Almost surely, 2202287423 is an apocalyptic number.

202287423 is a deficient number, since it is larger than the sum of its proper divisors (89773257).

202287423 is a wasteful number, since it uses less digits than its factorization.

202287423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399018 (or 399005 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 202287423 is about 14222.7783150832. The cubic root of 202287423 is about 587.0245900774.

The spelling of 202287423 in words is "two hundred two million, two hundred eighty-seven thousand, four hundred twenty-three".

Divisors: 1 3 13 39 169 507 398989 1196967 5186857 15560571 67429141 202287423