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228053953 = 1488715319
BaseRepresentation
bin11011001011111…
…01001111000001
3120220010100012201
431211331033001
5431340211303
634343553201
75436266221
oct1545751701
9526110181
10228053953
11107804346
126445b801
133832a58a
1422406081
151504b81d
hexd97d3c1

228053953 has 4 divisors (see below), whose sum is σ = 228084160. Its totient is φ = 228023748.

The previous prime is 228053911. The next prime is 228053981. The reversal of 228053953 is 359350822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 228053953 - 213 = 228045761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228053153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7228 + ... + 22546.

It is an arithmetic number, because the mean of its divisors is an integer number (57021040).

Almost surely, 2228053953 is an apocalyptic number.

It is an amenable number.

228053953 is a deficient number, since it is larger than the sum of its proper divisors (30207).

228053953 is a wasteful number, since it uses less digits than its factorization.

228053953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30206.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 228053953 is about 15101.4553272193. The cubic root of 228053953 is about 610.9596585039.

The spelling of 228053953 in words is "two hundred twenty-eight million, fifty-three thousand, nine hundred fifty-three".

Divisors: 1 14887 15319 228053953