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50668869 = 319387511
BaseRepresentation
bin1100000101001…
…0010101000101
310112100020121210
43001102111011
5100432400434
65010002033
71153451436
oct301222505
9115306553
1050668869
11266682a9
1214b76319
13a6609a4
146a2d48d
1546acee9
hex3052545

50668869 has 8 divisors (see below), whose sum is σ = 67909312. Its totient is φ = 33603840.

The previous prime is 50668859. The next prime is 50668883. The reversal of 50668869 is 96886605.

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

It is not a de Polignac number, because 50668869 - 29 = 50668357 is a prime.

It is a super-2 number, since 2×506688692 = 5134668571478322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50668819) 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, 43177 + ... + 44334.

It is an arithmetic number, because the mean of its divisors is an integer number (8488664).

Almost surely, 250668869 is an apocalyptic number.

It is an amenable number.

50668869 is a deficient number, since it is larger than the sum of its proper divisors (17240443).

50668869 is a wasteful number, since it uses less digits than its factorization.

50668869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87707.

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 50668869 is about 7118.2068669012. The cubic root of 50668869 is about 370.0386348748.

The spelling of 50668869 in words is "fifty million, six hundred sixty-eight thousand, eight hundred sixty-nine".

Divisors: 1 3 193 579 87511 262533 16889623 50668869