Search a number
-
+
30085862 = 215042931
BaseRepresentation
bin111001011000…
…1001011100110
32002121112001012
41302301023212
530200221422
62552502222
7513503612
oct162611346
962545035
1030085862
1115a89a54
12a0aa972
1363050b1
143dd2342
1529944e2
hex1cb12e6

30085862 has 4 divisors (see below), whose sum is σ = 45128796. Its totient is φ = 15042930.

The previous prime is 30085849. The next prime is 30085879. The reversal of 30085862 is 26858003.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 7521464 + ... + 7521467.

It is an arithmetic number, because the mean of its divisors is an integer number (11282199).

Almost surely, 230085862 is an apocalyptic number.

30085862 is a deficient number, since it is larger than the sum of its proper divisors (15042934).

30085862 is a wasteful number, since it uses less digits than its factorization.

30085862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15042933.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 30085862 is about 5485.0580671493. The cubic root of 30085862 is about 311.0194051229.

The spelling of 30085862 in words is "thirty million, eighty-five thousand, eight hundred sixty-two".

Divisors: 1 2 15042931 30085862