Search a number
-
+
30807386 = 227755609
BaseRepresentation
bin111010110000…
…1010101011010
32010222011210022
41311201111122
530341314021
63020150442
7522600311
oct165412532
963864708
1030807386
1116432055
12a398422
1364c862c
14413d278
152a881ab
hex1d6155a

30807386 has 8 divisors (see below), whose sum is σ = 46378740. Its totient is φ = 15347808.

The previous prime is 30807377. The next prime is 30807407. The reversal of 30807386 is 68370803.

It can be written as a sum of positive squares in 2 ways, for example, as 27762361 + 3045025 = 5269^2 + 1745^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27251 + ... + 28358.

Almost surely, 230807386 is an apocalyptic number.

30807386 is a deficient number, since it is larger than the sum of its proper divisors (15571354).

30807386 is a wasteful number, since it uses less digits than its factorization.

30807386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55888.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 30807386 is about 5550.4401627258. The cubic root of 30807386 is about 313.4860959742.

The spelling of 30807386 in words is "thirty million, eight hundred seven thousand, three hundred eighty-six".

Divisors: 1 2 277 554 55609 111218 15403693 30807386