Search a number
-
+
30687794 = 254728051
BaseRepresentation
bin111010100010…
…0001000110010
32010202002201222
41311010020302
530324002134
63013425042
7521561534
oct165041062
963662658
1030687794
1116360215
12a33b182
136486077
14410b854
152a62a2e
hex1d44232

30687794 has 8 divisors (see below), whose sum is σ = 46117488. Its totient is φ = 15315300.

The previous prime is 30687781. The next prime is 30687817. The reversal of 30687794 is 49778603.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12932 + ... + 15119.

It is an arithmetic number, because the mean of its divisors is an integer number (5764686).

Almost surely, 230687794 is an apocalyptic number.

30687794 is a deficient number, since it is larger than the sum of its proper divisors (15429694).

30687794 is a wasteful number, since it uses less digits than its factorization.

30687794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28600.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 30687794 is about 5539.6564875451. The cubic root of 30687794 is about 313.0799266465.

The spelling of 30687794 in words is "thirty million, six hundred eighty-seven thousand, seven hundred ninety-four".

Divisors: 1 2 547 1094 28051 56102 15343897 30687794