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253251206 = 21323423497
BaseRepresentation
bin11110001100001…
…00111010000110
3122122112111100022
433012010322012
51004313014311
641044015142
76163412465
oct1706047206
9578474308
10253251206
1111aa5441a
12709914b2
13406104b0
14258c49dc
15173775db
hexf184e86

253251206 has 16 divisors (see below), whose sum is σ = 426885984. Its totient is φ = 111802944.

The previous prime is 253251203. The next prime is 253251221. The reversal of 253251206 is 602152352.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253251203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211151 + ... + 212346.

It is an arithmetic number, because the mean of its divisors is an integer number (26680374).

Almost surely, 2253251206 is an apocalyptic number.

253251206 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

253251206 is a deficient number, since it is larger than the sum of its proper divisors (173634778).

253251206 is a wasteful number, since it uses less digits than its factorization.

253251206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423535.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 253251206 is about 15913.8683543631. The cubic root of 253251206 is about 632.6796136200.

The spelling of 253251206 in words is "two hundred fifty-three million, two hundred fifty-one thousand, two hundred six".

Divisors: 1 2 13 23 26 46 299 598 423497 846994 5505461 9740431 11010922 19480862 126625603 253251206