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200520129 = 3193517897
BaseRepresentation
bin10111111001110…
…11000111000001
3111222022110220110
423330323013001
5402313121004
631521501533
74653251535
oct1374730701
9458273813
10200520129
11a3208817
12571a18a9
1332709c84
141c8b9bc5
151290d589
hexbf3b1c1

200520129 has 8 divisors (see below), whose sum is σ = 281431840. Its totient is φ = 126644256.

The previous prime is 200520127. The next prime is 200520143. The reversal of 200520129 is 921025002.

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

It is not a de Polignac number, because 200520129 - 21 = 200520127 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200520127) 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, 1758892 + ... + 1759005.

It is an arithmetic number, because the mean of its divisors is an integer number (35178980).

Almost surely, 2200520129 is an apocalyptic number.

It is an amenable number.

200520129 is a deficient number, since it is larger than the sum of its proper divisors (80911711).

200520129 is a wasteful number, since it uses less digits than its factorization.

200520129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3517919.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 200520129 is about 14160.5130203676. The cubic root of 200520129 is about 585.3100642801.

The spelling of 200520129 in words is "two hundred million, five hundred twenty thousand, one hundred twenty-nine".

Divisors: 1 3 19 57 3517897 10553691 66840043 200520129