Search a number
-
+
30622994 = 215311497
BaseRepresentation
bin111010011010…
…0010100010010
32010121210211222
41310310110102
530314413434
63012205042
7521201603
oct164642422
963553758
1030622994
1116316566
12a309782
13646271c
1440d1daa
152a4d72e
hex1d34512

30622994 has 4 divisors (see below), whose sum is σ = 45934494. Its totient is φ = 15311496.

The previous prime is 30622979. The next prime is 30623027. The reversal of 30622994 is 49922603.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49922603 = 145934217.

It can be written as a sum of positive squares in only one way, i.e., 29214025 + 1408969 = 5405^2 + 1187^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7655747 + ... + 7655750.

Almost surely, 230622994 is an apocalyptic number.

30622994 is a deficient number, since it is larger than the sum of its proper divisors (15311500).

30622994 is a wasteful number, since it uses less digits than its factorization.

30622994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15311499.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 30622994 is about 5533.8046586413. The cubic root of 30622994 is about 312.8594060090.

The spelling of 30622994 in words is "thirty million, six hundred twenty-two thousand, nine hundred ninety-four".

Divisors: 1 2 15311497 30622994