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253305258 = 2348786689
BaseRepresentation
bin11110001100100…
…10000110101010
3122122122020111020
433012102012222
51004321232013
641045113310
76164026203
oct1706220652
9578566436
10253305258
1111aa90a98
12709b8836
134062bc8b
14258da5aa
1517388623
hexf1921aa

253305258 has 16 divisors (see below), whose sum is σ = 507656640. Its totient is φ = 84260736.

The previous prime is 253305229. The next prime is 253305263. The reversal of 253305258 is 852503352.

It is an unprimeable number.

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, 40423 + ... + 46266.

It is an arithmetic number, because the mean of its divisors is an integer number (31728540).

Almost surely, 2253305258 is an apocalyptic number.

253305258 is an abundant number, since it is smaller than the sum of its proper divisors (254351382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253305258 is a wasteful number, since it uses less digits than its factorization.

253305258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87181.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 253305258 is about 15915.5665309156. The cubic root of 253305258 is about 632.7246218503.

The spelling of 253305258 in words is "two hundred fifty-three million, three hundred five thousand, two hundred fifty-eight".

Divisors: 1 2 3 6 487 974 1461 2922 86689 173378 260067 520134 42217543 84435086 126652629 253305258