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253883655 = 3255641859
BaseRepresentation
bin11110010000111…
…11010100000111
3122200201121220100
433020133110013
51004443234110
641105335143
76201655404
oct1710372407
9580647810
10253883655
11120346603
12710374b3
13407a231c
1425a0b2ab
151744ebc0
hexf21f507

253883655 has 12 divisors (see below), whose sum is σ = 440065080. Its totient is φ = 135404592.

The previous prime is 253883579. The next prime is 253883657. The reversal of 253883655 is 556388352.

It is not a de Polignac number, because 253883655 - 27 = 253883527 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 5641859 = 253883655 / (2 + 5 + 3 + 8 + 8 + 3 + 6 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 253883655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253883657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2820885 + ... + 2820974.

It is an arithmetic number, because the mean of its divisors is an integer number (36672090).

Almost surely, 2253883655 is an apocalyptic number.

253883655 is a deficient number, since it is larger than the sum of its proper divisors (186181425).

253883655 is a wasteful number, since it uses less digits than its factorization.

253883655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5641870 (or 5641867 counting only the distinct ones).

The product of its digits is 864000, while the sum is 45.

The square root of 253883655 is about 15933.7269651516. The cubic root of 253883655 is about 633.2058433746.

The spelling of 253883655 in words is "two hundred fifty-three million, eight hundred eighty-three thousand, six hundred fifty-five".

Divisors: 1 3 5 9 15 45 5641859 16925577 28209295 50776731 84627885 253883655