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200652981 = 366884327
BaseRepresentation
bin10111111010110…
…11100010110101
3111222120020010220
423331123202311
5402331343411
631524404553
74654344054
oct1375334265
9458506126
10200652981
11a3299611
1257246759
1332755599
141c91239b
1512937b06
hexbf5b8b5

200652981 has 4 divisors (see below), whose sum is σ = 267537312. Its totient is φ = 133768652.

The previous prime is 200652967. The next prime is 200652997. The reversal of 200652981 is 189256002.

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 200652981 - 29 = 200652469 is a prime.

It is a super-2 number, since 2×2006529812 = 80523237568372722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200652911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33442161 + ... + 33442166.

It is an arithmetic number, because the mean of its divisors is an integer number (66884328).

Almost surely, 2200652981 is an apocalyptic number.

It is an amenable number.

200652981 is a deficient number, since it is larger than the sum of its proper divisors (66884331).

200652981 is an equidigital number, since it uses as much as digits as its factorization.

200652981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66884330.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 200652981 is about 14165.2031753872. The cubic root of 200652981 is about 585.4392989301.

The spelling of 200652981 in words is "two hundred million, six hundred fifty-two thousand, nine hundred eighty-one".

Divisors: 1 3 66884327 200652981