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254384542 = 2834493413
BaseRepresentation
bin11110010100110…
…01100110011110
3122201200001222201
433022121212132
51010110301132
641124202114
76206142616
oct1712314636
9581601881
10254384542
11120658965
127123933a
13409192c9
1425adba46
15174ed2e7
hexf29999e

254384542 has 16 divisors (see below), whose sum is σ = 387147600. Its totient is φ = 125343232.

The previous prime is 254384519. The next prime is 254384561. The reversal of 254384542 is 245483452.

It is a super-2 number, since 2×2543845422 = 129422990417099528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72828 + ... + 76240.

It is an arithmetic number, because the mean of its divisors is an integer number (24196725).

Almost surely, 2254384542 is an apocalyptic number.

254384542 is a deficient number, since it is larger than the sum of its proper divisors (132763058).

254384542 is a wasteful number, since it uses less digits than its factorization.

254384542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3947.

The product of its digits is 153600, while the sum is 37.

The square root of 254384542 is about 15949.4370433567. The cubic root of 254384542 is about 633.6219870417.

The spelling of 254384542 in words is "two hundred fifty-four million, three hundred eighty-four thousand, five hundred forty-two".

Divisors: 1 2 83 166 449 898 3413 6826 37267 74534 283279 566558 1532437 3064874 127192271 254384542