Search a number
-
+
50787040 = 255317419
BaseRepresentation
bin1100000110111…
…1001011100000
310112120020201111
43001233023200
5101000141130
65012313104
71154453113
oct301571340
9115506644
1050787040
1126739067
1215012794
13a6a2705
146a6057a
1546d302a
hex306f2e0

50787040 has 24 divisors (see below), whose sum is σ = 119984760. Its totient is φ = 20314752.

The previous prime is 50787029. The next prime is 50787043. The reversal of 50787040 is 4078705.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 50786993 and 50787011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50787043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158550 + ... + 158869.

It is an arithmetic number, because the mean of its divisors is an integer number (4999365).

Almost surely, 250787040 is an apocalyptic number.

It is an amenable number.

50787040 is an abundant number, since it is smaller than the sum of its proper divisors (69197720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50787040 is a wasteful number, since it uses less digits than its factorization.

50787040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317434 (or 317426 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 50787040 is about 7126.5026485647. The cubic root of 50787040 is about 370.3260821512.

The spelling of 50787040 in words is "fifty million, seven hundred eighty-seven thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 317419 634838 1269676 1587095 2539352 3174190 5078704 6348380 10157408 12696760 25393520 50787040