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200689898 = 2100344949
BaseRepresentation
bin10111111011001…
…00100011101010
3111222122002210012
423331210203222
5402334034043
631525251522
74654556513
oct1375444352
9458562705
10200689898
11a3314322
1257263ba2
1332769326
141c921a0a
1512943a18
hexbf648ea

200689898 has 4 divisors (see below), whose sum is σ = 301034850. Its totient is φ = 100344948.

The previous prime is 200689849. The next prime is 200689943. The reversal of 200689898 is 898986002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 161213809 + 39476089 = 12697^2 + 6283^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50172473 + ... + 50172476.

Almost surely, 2200689898 is an apocalyptic number.

200689898 is a deficient number, since it is larger than the sum of its proper divisors (100344952).

200689898 is a wasteful number, since it uses less digits than its factorization.

200689898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100344951.

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 200689898 is about 14166.5062030128. The cubic root of 200689898 is about 585.4752006100.

The spelling of 200689898 in words is "two hundred million, six hundred eighty-nine thousand, eight hundred ninety-eight".

Divisors: 1 2 100344949 200689898