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200604621 = 3779120919
BaseRepresentation
bin10111111010011…
…11101111001101
3111222110202210210
423331033233031
5402323321441
631523353033
74654053060
oct1375175715
9458422723
10200604621
11a3266248
1257222779
1332739579
141c8dc8d7
1512928616
hexbf4fbcd

200604621 has 16 divisors (see below), whose sum is σ = 309555200. Its totient is φ = 113179248.

The previous prime is 200604619. The next prime is 200604631. The reversal of 200604621 is 126406002.

It is a happy number.

It is not a de Polignac number, because 200604621 - 21 = 200604619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200604631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58801 + ... + 62118.

It is an arithmetic number, because the mean of its divisors is an integer number (19347200).

Almost surely, 2200604621 is an apocalyptic number.

200604621 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

200604621 is a deficient number, since it is larger than the sum of its proper divisors (108950579).

200604621 is a wasteful number, since it uses less digits than its factorization.

200604621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121008.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 200604621 is about 14163.4960726510. The cubic root of 200604621 is about 585.3922623014.

The spelling of 200604621 in words is "two hundred million, six hundred four thousand, six hundred twenty-one".

Divisors: 1 3 7 21 79 237 553 1659 120919 362757 846433 2539299 9552601 28657803 66868207 200604621