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30084722 = 215042361
BaseRepresentation
bin111001011000…
…0111001110010
32002121110110222
41302300321302
530200202342
62552453042
7513500363
oct162607162
962543428
1030084722
1115a89108
12a0aa182
136304715
143dd1b6a
152993ed2
hex1cb0e72

30084722 has 4 divisors (see below), whose sum is σ = 45127086. Its totient is φ = 15042360.

The previous prime is 30084721. The next prime is 30084731. The reversal of 30084722 is 22748003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22748003 = 36596217.

It can be written as a sum of positive squares in only one way, i.e., 29931841 + 152881 = 5471^2 + 391^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30084691 and 30084700.

It is not an unprimeable number, because it can be changed into a prime (30084721) by changing a digit.

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, 7521179 + ... + 7521182.

Almost surely, 230084722 is an apocalyptic number.

30084722 is a deficient number, since it is larger than the sum of its proper divisors (15042364).

30084722 is a wasteful number, since it uses less digits than its factorization.

30084722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15042363.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 30084722 is about 5484.9541474838. The cubic root of 30084722 is about 311.0154767373.

The spelling of 30084722 in words is "thirty million, eighty-four thousand, seven hundred twenty-two".

Divisors: 1 2 15042361 30084722