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253468328 = 2331683541
BaseRepresentation
bin11110001101110…
…01111010101000
3122122221112011212
433012321322220
51004341441303
641052412252
76165305501
oct1706717250
9578845155
10253468328
11120092563
1270a77088
1340688279
142593dba8
15173bbad8
hexf1b9ea8

253468328 has 8 divisors (see below), whose sum is σ = 475253130. Its totient is φ = 126734160.

The previous prime is 253468309. The next prime is 253468333. The reversal of 253468328 is 823864352.

It can be written as a sum of positive squares in only one way, i.e., 183277444 + 70190884 = 13538^2 + 8378^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15841763 + ... + 15841778.

Almost surely, 2253468328 is an apocalyptic number.

It is an amenable number.

253468328 is a deficient number, since it is larger than the sum of its proper divisors (221784802).

253468328 is a wasteful number, since it uses less digits than its factorization.

253468328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31683547 (or 31683543 counting only the distinct ones).

The product of its digits is 276480, while the sum is 41.

The square root of 253468328 is about 15920.6886785717. The cubic root of 253468328 is about 632.8603688298.

The spelling of 253468328 in words is "two hundred fifty-three million, four hundred sixty-eight thousand, three hundred twenty-eight".

Divisors: 1 2 4 8 31683541 63367082 126734164 253468328