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202545031 = 13142910903
BaseRepresentation
bin11000001001010…
…01011110000111
3112010010100112211
430010221132013
5403322420111
632033124251
75006414203
oct1404513607
9463110484
10202545031
11a4371097
12579b9687
1332c68840
141cc85b03
1512bad521
hexc129787

202545031 has 8 divisors (see below), whose sum is σ = 218298080. Its totient is φ = 186816672.

The previous prime is 202545011. The next prime is 202545127. The reversal of 202545031 is 130545202.

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 202545031 - 213 = 202536839 is a prime.

It is a super-2 number, since 2×2025450312 = 82048979165581922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202544993 and 202545011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202545001) 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 7 ways as a sum of consecutive naturals, for example, 13126 + ... + 24028.

It is an arithmetic number, because the mean of its divisors is an integer number (27287260).

Almost surely, 2202545031 is an apocalyptic number.

202545031 is a deficient number, since it is larger than the sum of its proper divisors (15753049).

202545031 is a wasteful number, since it uses less digits than its factorization.

202545031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12345.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 202545031 is about 14231.8316108644. The cubic root of 202545031 is about 587.2736714442.

The spelling of 202545031 in words is "two hundred two million, five hundred forty-five thousand, thirty-one".

Divisors: 1 13 1429 10903 18577 141739 15580387 202545031