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254387429 = 2327140813
BaseRepresentation
bin11110010100110…
…10010011100101
3122201200012221122
433022122103211
51010110344204
641124223325
76206154212
oct1712322345
9581605848
10254387429
1112066004a
127123ab45
134091a70a
1425adcb09
15174ee0be
hexf29a4e5

254387429 has 8 divisors (see below), whose sum is σ = 266433792. Its totient is φ = 242423280.

The previous prime is 254387423. The next prime is 254387431. The reversal of 254387429 is 924783452.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-254387429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 254387429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254387423) 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, 14174 + ... + 26639.

It is an arithmetic number, because the mean of its divisors is an integer number (33304224).

Almost surely, 2254387429 is an apocalyptic number.

It is an amenable number.

254387429 is a deficient number, since it is larger than the sum of its proper divisors (12046363).

254387429 is a wasteful number, since it uses less digits than its factorization.

254387429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41107.

The product of its digits is 483840, while the sum is 44.

The square root of 254387429 is about 15949.5275478617. The cubic root of 254387429 is about 633.6243840162.

The spelling of 254387429 in words is "two hundred fifty-four million, three hundred eighty-seven thousand, four hundred twenty-nine".

Divisors: 1 23 271 6233 40813 938699 11060323 254387429