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254480138 = 21111567279
BaseRepresentation
bin11110010101100…
…00111100001010
3122201211221010022
433022300330022
51010121331023
641130220442
76210021413
oct1712607412
9581757108
10254480138
11120713770
1271284722
1340950983
1425b2480a
151751b7c8
hexf2b0f0a

254480138 has 8 divisors (see below), whose sum is σ = 416422080. Its totient is φ = 115672780.

The previous prime is 254480131. The next prime is 254480197. The reversal of 254480138 is 831084452.

254480138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 254480098 and 254480107.

It is not an unprimeable number, because it can be changed into a prime (254480131) 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, 5783618 + ... + 5783661.

It is an arithmetic number, because the mean of its divisors is an integer number (52052760).

Almost surely, 2254480138 is an apocalyptic number.

254480138 is a deficient number, since it is larger than the sum of its proper divisors (161941942).

254480138 is a wasteful number, since it uses less digits than its factorization.

254480138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11567292.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 254480138 is about 15952.4336074469. The cubic root of 254480138 is about 633.7013473953.

The spelling of 254480138 in words is "two hundred fifty-four million, four hundred eighty thousand, one hundred thirty-eight".

Divisors: 1 2 11 22 11567279 23134558 127240069 254480138