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200139452 = 2267797937
BaseRepresentation
bin10111110110111…
…10001010111100
3111221121010201022
423323132022330
5402213430302
631505403312
74650104642
oct1373361274
9457533638
10200139452
11a2a78807
1257039538
1332605916
141c81b192
15128858a2
hexbede2bc

200139452 has 24 divisors (see below), whose sum is σ = 356297424. Its totient is φ = 98347392.

The previous prime is 200139451. The next prime is 200139463. The reversal of 200139452 is 254931002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200139451) 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, 213128 + ... + 214064.

It is an arithmetic number, because the mean of its divisors is an integer number (14845726).

Almost surely, 2200139452 is an apocalyptic number.

It is an amenable number.

200139452 is a deficient number, since it is larger than the sum of its proper divisors (156157972).

200139452 is a wasteful number, since it uses less digits than its factorization.

200139452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805 (or 1803 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 200139452 is about 14147.0651373350. The cubic root of 200139452 is about 584.9394361048.

The spelling of 200139452 in words is "two hundred million, one hundred thirty-nine thousand, four hundred fifty-two".

Divisors: 1 2 4 67 134 268 797 937 1594 1874 3188 3748 53399 62779 106798 125558 213596 251116 746789 1493578 2987156 50034863 100069726 200139452