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283856401 = 7921117029
BaseRepresentation
bin10000111010110…
…100111000010001
3201210010101210001
4100322310320101
51040131401101
644100010001
710014511453
oct2072647021
9653111701
10283856401
11136258574
127b090901
1346a67a8a
14299b02d3
1519dc0901
hex10eb4e11

283856401 has 8 divisors (see below), whose sum is σ = 288828800. Its totient is φ = 278918640.

The previous prime is 283856387. The next prime is 283856411. The reversal of 283856401 is 104658382.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 283856401 - 27 = 283856273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (283856411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8155 + ... + 25183.

It is an arithmetic number, because the mean of its divisors is an integer number (36103600).

Almost surely, 2283856401 is an apocalyptic number.

It is an amenable number.

283856401 is a deficient number, since it is larger than the sum of its proper divisors (4972399).

283856401 is a wasteful number, since it uses less digits than its factorization.

283856401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17319.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 283856401 is about 16848.0384911716. The cubic root of 283856401 is about 657.2030405385.

The spelling of 283856401 in words is "two hundred eighty-three million, eight hundred fifty-six thousand, four hundred one".

Divisors: 1 79 211 16669 17029 1345291 3593119 283856401