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253600990 = 25234126893
BaseRepresentation
bin11110001110110…
…10010011011110
3122200012021011021
433013122103132
51004410212430
641055314354
76166400326
oct1707322336
9580167137
10253600990
111201731a5
1270b1b9ba
1340703776
1425976286
15173e607a
hexf1da4de

253600990 has 32 divisors (see below), whose sum is σ = 487964736. Its totient is φ = 94659840.

The previous prime is 253600937. The next prime is 253601003. The reversal of 253600990 is 99006352.

It is a happy number.

253600990 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4017 + ... + 22876.

It is an arithmetic number, because the mean of its divisors is an integer number (15248898).

Almost surely, 2253600990 is an apocalyptic number.

253600990 is a deficient number, since it is larger than the sum of its proper divisors (234363746).

253600990 is a wasteful number, since it uses less digits than its factorization.

253600990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26964.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 253600990 is about 15924.8544734324. The cubic root of 253600990 is about 632.9707598465.

The spelling of 253600990 in words is "two hundred fifty-three million, six hundred thousand, nine hundred ninety".

Divisors: 1 2 5 10 23 41 46 82 115 205 230 410 943 1886 4715 9430 26893 53786 134465 268930 618539 1102613 1237078 2205226 3092695 5513065 6185390 11026130 25360099 50720198 126800495 253600990