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202323031 = 6131710463
BaseRepresentation
bin11000000111100…
…11010001010111
3112002201002000121
430003303101113
5403243314111
632024252411
75004501031
oct1403632127
9462632017
10202323031
11a422a319
1257911107
1332bbb791
141cc28c51
1512b67871
hexc0f3457

202323031 has 8 divisors (see below), whose sum is σ = 206308224. Its totient is φ = 198359520.

The previous prime is 202323013. The next prime is 202323059. The reversal of 202323031 is 130323202.

202323031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202323031 - 25 = 202322999 is a prime.

It is a super-2 number, since 2×2023230312 = 81869217746053922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202322996 and 202323014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202323061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14106 + ... + 24568.

It is an arithmetic number, because the mean of its divisors is an integer number (25788528).

Almost surely, 2202323031 is an apocalyptic number.

202323031 is a deficient number, since it is larger than the sum of its proper divisors (3985193).

202323031 is a wasteful number, since it uses less digits than its factorization.

202323031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10841.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 202323031 is about 14224.0300548051. The cubic root of 202323031 is about 587.0590320691.

Adding to 202323031 its reverse (130323202), we get a palindrome (332646233).

The spelling of 202323031 in words is "two hundred two million, three hundred twenty-three thousand, thirty-one".

Divisors: 1 61 317 10463 19337 638243 3316771 202323031