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254045420 = 22515184121
BaseRepresentation
bin11110010010001…
…10110011101100
3122201000211210122
433021012303230
51010013423140
641113024112
76203231126
oct1711066354
9581024718
10254045420
111204470a2
12710b5038
134082ab45
1425a50216
1517482ab5
hexf246cec

254045420 has 24 divisors (see below), whose sum is σ = 537034848. Its totient is φ = 100944000.

The previous prime is 254045417. The next prime is 254045489. The reversal of 254045420 is 24540452.

It is a self number, because there is not a number n which added to its sum of digits gives 254045420.

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, 39041 + ... + 45080.

It is an arithmetic number, because the mean of its divisors is an integer number (22376452).

Almost surely, 2254045420 is an apocalyptic number.

254045420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

254045420 is an abundant number, since it is smaller than the sum of its proper divisors (282989428).

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

254045420 is a wasteful number, since it uses less digits than its factorization.

254045420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84281 (or 84279 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 254045420 is about 15938.8023389463. The cubic root of 254045420 is about 633.3402997079.

Adding to 254045420 its reverse (24540452), we get a palindrome (278585872).

The spelling of 254045420 in words is "two hundred fifty-four million, forty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 151 302 604 755 1510 3020 84121 168242 336484 420605 841210 1682420 12702271 25404542 50809084 63511355 127022710 254045420