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200472081 = 366824027
BaseRepresentation
bin10111111001011…
…11011000010001
3111222020000222220
423330233120101
5402310101311
631520451253
74652661465
oct1374573021
9458200886
10200472081
11a3185707
1257179b29
13326c1144
141c8a64a5
15128ee206
hexbf2f611

200472081 has 4 divisors (see below), whose sum is σ = 267296112. Its totient is φ = 133648052.

The previous prime is 200472049. The next prime is 200472091. The reversal of 200472081 is 180274002.

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 200472081 - 25 = 200472049 is a prime.

It is a super-2 number, since 2×2004720812 = 80378110520941122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (200472091) 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, 33412011 + ... + 33412016.

It is an arithmetic number, because the mean of its divisors is an integer number (66824028).

Almost surely, 2200472081 is an apocalyptic number.

It is an amenable number.

200472081 is a deficient number, since it is larger than the sum of its proper divisors (66824031).

200472081 is an equidigital number, since it uses as much as digits as its factorization.

200472081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66824030.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 200472081 is about 14158.8163700219. The cubic root of 200472081 is about 585.2633104959.

The spelling of 200472081 in words is "two hundred million, four hundred seventy-two thousand, eighty-one".

Divisors: 1 3 66824027 200472081