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254042885 = 5316916033
BaseRepresentation
bin11110010010001…
…10001100000101
3122201000201022202
433021012030011
51010013333020
641113004245
76203220545
oct1711061405
9581021282
10254042885
111204451a8
12710b3685
1340829945
1425a4d325
1517481e75
hexf246305

254042885 has 8 divisors (see below), whose sum is σ = 304966680. Its totient is φ = 203157504.

The previous prime is 254042881. The next prime is 254042891. The reversal of 254042885 is 588240452.

It can be written as a sum of positive squares in 4 ways, for example, as 4592449 + 249450436 = 2143^2 + 15794^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 254042885 - 22 = 254042881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254042881) 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, 7829 + ... + 23861.

It is an arithmetic number, because the mean of its divisors is an integer number (38120835).

Almost surely, 2254042885 is an apocalyptic number.

It is an amenable number.

254042885 is a deficient number, since it is larger than the sum of its proper divisors (50923795).

254042885 is a wasteful number, since it uses less digits than its factorization.

254042885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19207.

The product of its (nonzero) digits is 102400, while the sum is 38.

The square root of 254042885 is about 15938.7228158344. The cubic root of 254042885 is about 633.3381930991.

The spelling of 254042885 in words is "two hundred fifty-four million, forty-two thousand, eight hundred eighty-five".

Divisors: 1 5 3169 15845 16033 80165 50808577 254042885