Search a number
-
+
30274922 = 215137461
BaseRepresentation
bin111001101111…
…1010101101010
32002222010101102
41303133111222
530222244142
63000521402
7515222036
oct163372552
962863342
1030274922
11160a8aa7
12a180262
136370172
1440411c6
1529d0532
hex1cdf56a

30274922 has 4 divisors (see below), whose sum is σ = 45412386. Its totient is φ = 15137460.

The previous prime is 30274921. The next prime is 30274939. The reversal of 30274922 is 22947203.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22947203 = 227101089.

It can be written as a sum of positive squares in only one way, i.e., 29149201 + 1125721 = 5399^2 + 1061^2 .

It is not an unprimeable number, because it can be changed into a prime (30274921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7568729 + ... + 7568732.

Almost surely, 230274922 is an apocalyptic number.

30274922 is a deficient number, since it is larger than the sum of its proper divisors (15137464).

30274922 is a wasteful number, since it uses less digits than its factorization.

30274922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15137463.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 30274922 is about 5502.2651699096. The cubic root of 30274922 is about 311.6695287309.

The spelling of 30274922 in words is "thirty million, two hundred seventy-four thousand, nine hundred twenty-two".

Divisors: 1 2 15137461 30274922