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253919982 = 23359117883
BaseRepresentation
bin11110010001010…
…00001011101110
3122200210110201210
433020220023232
51010000414412
641110215250
76202166331
oct1710501356
9580713653
10253919982
11120370928
1271054526
13407b5a14
1425a1a618
151745a83c
hexf2282ee

253919982 has 16 divisors (see below), whose sum is σ = 509258880. Its totient is φ = 84403512.

The previous prime is 253919951. The next prime is 253919987. The reversal of 253919982 is 289919352.

253919982 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253919987) 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, 56788 + ... + 61095.

It is an arithmetic number, because the mean of its divisors is an integer number (31828680).

Almost surely, 2253919982 is an apocalyptic number.

253919982 is an abundant number, since it is smaller than the sum of its proper divisors (255338898).

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

253919982 is a wasteful number, since it uses less digits than its factorization.

253919982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118247.

The product of its digits is 349920, while the sum is 48.

The square root of 253919982 is about 15934.8668648345. The cubic root of 253919982 is about 633.2360427346.

The spelling of 253919982 in words is "two hundred fifty-three million, nine hundred nineteen thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 359 718 1077 2154 117883 235766 353649 707298 42319997 84639994 126959991 253919982