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253061834 = 2126530917
BaseRepresentation
bin11110001010101…
…10101011001010
3122122011212120112
433011112223022
51004240434314
641035554322
76161663414
oct1705265312
9578155515
10253061834
1111a935113
12708bb9a2
134057523c
14258759b4
151733b43e
hexf156aca

253061834 has 4 divisors (see below), whose sum is σ = 379592754. Its totient is φ = 126530916.

The previous prime is 253061827. The next prime is 253061843. The reversal of 253061834 is 438160352.

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., 235714609 + 17347225 = 15353^2 + 4165^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 253061834.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63265457 + ... + 63265460.

Almost surely, 2253061834 is an apocalyptic number.

253061834 is a deficient number, since it is larger than the sum of its proper divisors (126530920).

253061834 is a wasteful number, since it uses less digits than its factorization.

253061834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126530919.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 253061834 is about 15907.9173369741. The cubic root of 253061834 is about 632.5218760628.

The spelling of 253061834 in words is "two hundred fifty-three million, sixty-one thousand, eight hundred thirty-four".

Divisors: 1 2 126530917 253061834