Search a number
-
+
30378066 = 2340912379
BaseRepresentation
bin111001111100…
…0100001010010
32010011100212120
41303320201102
530234044231
63003035110
7516131535
oct163704122
963140776
1030378066
1116169544
12a20ba96
1363a80b4
14406aa1c
152a00d96
hex1cf8852

30378066 has 16 divisors (see below), whose sum is σ = 60909600. Its totient is φ = 10100448.

The previous prime is 30378059. The next prime is 30378077. The reversal of 30378066 is 66087303.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3736 + ... + 8643.

It is an arithmetic number, because the mean of its divisors is an integer number (3806850).

Almost surely, 230378066 is an apocalyptic number.

30378066 is an abundant number, since it is smaller than the sum of its proper divisors (30531534).

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

30378066 is a wasteful number, since it uses less digits than its factorization.

30378066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12793.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 30378066 is about 5511.6300674120. The cubic root of 30378066 is about 312.0230711079.

The spelling of 30378066 in words is "thirty million, three hundred seventy-eight thousand, sixty-six".

Divisors: 1 2 3 6 409 818 1227 2454 12379 24758 37137 74274 5063011 10126022 15189033 30378066