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254722068 = 22327075613
BaseRepresentation
bin11110010111011…
…00000000010100
3122202022012222200
433023230000110
51010202101233
641135324500
76212046636
oct1713540024
9582265880
10254722068
11120869507
1271380730
1340a06b23
1425b88a56
1517568313
hexf2ec014

254722068 has 18 divisors (see below), whose sum is σ = 643880874. Its totient is φ = 84907344.

The previous prime is 254722049. The next prime is 254722099. The reversal of 254722068 is 860227452.

It can be written as a sum of positive squares in only one way, i.e., 146603664 + 108118404 = 12108^2 + 10398^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 7075613 = 254722068 / (2 + 5 + 4 + 7 + 2 + 2 + 0 + 6 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3537771 + ... + 3537842.

Almost surely, 2254722068 is an apocalyptic number.

It is an amenable number.

254722068 is an abundant number, since it is smaller than the sum of its proper divisors (389158806).

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

254722068 is a wasteful number, since it uses less digits than its factorization.

254722068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7075623 (or 7075618 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 254722068 is about 15960.0146616474. The cubic root of 254722068 is about 633.9021002062.

The spelling of 254722068 in words is "two hundred fifty-four million, seven hundred twenty-two thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 7075613 14151226 21226839 28302452 42453678 63680517 84907356 127361034 254722068