Search a number
-
+
50256789 = 3111522933
BaseRepresentation
bin1011111110110…
…1101110010101
310111120022100120
42333231232111
5100331204124
64553102153
71150114152
oct277555625
9114508316
1050256789
1126406740
12149b7959
13a54825b
146963229
15462ad79
hex2fedb95

50256789 has 8 divisors (see below), whose sum is σ = 73100832. Its totient is φ = 30458640.

The previous prime is 50256781. The next prime is 50256803. The reversal of 50256789 is 98765205.

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

It is not a de Polignac number, because 50256789 - 23 = 50256781 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 50256789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50256781) 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, 761434 + ... + 761499.

It is an arithmetic number, because the mean of its divisors is an integer number (9137604).

Almost surely, 250256789 is an apocalyptic number.

It is an amenable number.

50256789 is a deficient number, since it is larger than the sum of its proper divisors (22844043).

50256789 is a wasteful number, since it uses less digits than its factorization.

50256789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522947.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 50256789 is about 7089.2022823446. The cubic root of 50256789 is about 369.0327524339.

It can be divided in two parts, 502 and 56789, that added together give a triangular number (57291 = T338).

The spelling of 50256789 in words is "fifty million, two hundred fifty-six thousand, seven hundred eighty-nine".

Divisors: 1 3 11 33 1522933 4568799 16752263 50256789