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200649031 = 1119792593
BaseRepresentation
bin10111111010110…
…10100101000111
3111222120000201121
423331122211013
5402331232111
631524334411
74654326412
oct1375324507
9458500647
10200649031
11a3296650
1257244407
133275384b
141c910b79
1512936871
hexbf5a947

200649031 has 8 divisors (see below), whose sum is σ = 220003344. Its totient is φ = 181480320.

The previous prime is 200649023. The next prime is 200649067. The reversal of 200649031 is 130946002.

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 200649031 - 23 = 200649023 is a prime.

It is a super-2 number, since 2×2006490312 = 80520067282477922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200648987 and 200649005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200649091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44130 + ... + 48463.

It is an arithmetic number, because the mean of its divisors is an integer number (27500418).

Almost surely, 2200649031 is an apocalyptic number.

200649031 is a deficient number, since it is larger than the sum of its proper divisors (19354313).

200649031 is a wasteful number, since it uses less digits than its factorization.

200649031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92801.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 200649031 is about 14165.0637485329. The cubic root of 200649031 is about 585.4354573053.

The spelling of 200649031 in words is "two hundred million, six hundred forty-nine thousand, thirty-one".

Divisors: 1 11 197 2167 92593 1018523 18240821 200649031