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30540322 = 278719403
BaseRepresentation
bin111010010000…
…0001000100010
32010110121110001
41310200020202
530304242242
63010330214
7520405561
oct164401042
963417401
1030540322
111626a43a
12a28996a
136433bc7
1440adbd8
152a33eb7
hex1d20222

30540322 has 8 divisors (see below), whose sum is σ = 45871056. Its totient is φ = 15249972.

The previous prime is 30540299. The next prime is 30540329. The reversal of 30540322 is 22304503.

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

It is a super-2 number, since 2×305403222 = 1865422535727368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30540322.

It is not an unprimeable number, because it can be changed into a prime (30540329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8128 + ... + 11275.

It is an arithmetic number, because the mean of its divisors is an integer number (5733882).

Almost surely, 230540322 is an apocalyptic number.

30540322 is a deficient number, since it is larger than the sum of its proper divisors (15330734).

30540322 is a wasteful number, since it uses less digits than its factorization.

30540322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20192.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 30540322 is about 5526.3298851951. The cubic root of 30540322 is about 312.5776131489.

Adding to 30540322 its reverse (22304503), we get a palindrome (52844825).

The spelling of 30540322 in words is "thirty million, five hundred forty thousand, three hundred twenty-two".

Divisors: 1 2 787 1574 19403 38806 15270161 30540322