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50660689 = 478631249
BaseRepresentation
bin1100000101000…
…0010101010001
310112022211101211
43001100111101
5100432120224
65005500121
71153415542
oct301202521
9115284354
1050660689
1126662142
1214b71641
13a65a051
146a2a4c9
1546aa894
hex3050551

50660689 has 8 divisors (see below), whose sum is σ = 51840000. Its totient is φ = 49485696.

The previous prime is 50660677. The next prime is 50660699. The reversal of 50660689 is 98606605.

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-50660689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50660639) 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, 39937 + ... + 41185.

It is an arithmetic number, because the mean of its divisors is an integer number (6480000).

Almost surely, 250660689 is an apocalyptic number.

It is an amenable number.

50660689 is a deficient number, since it is larger than the sum of its proper divisors (1179311).

50660689 is a wasteful number, since it uses less digits than its factorization.

50660689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 50660689 is about 7117.6322608013. The cubic root of 50660689 is about 370.0187207474.

The spelling of 50660689 in words is "fifty million, six hundred sixty thousand, six hundred eighty-nine".

Divisors: 1 47 863 1249 40561 58703 1077887 50660689