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30540754 = 215270377
BaseRepresentation
bin111010010000…
…0001111010010
32010110122001001
41310200033102
530304301004
63010332214
7520410046
oct164401722
963418031
1030540754
111626a7a2
12a28a06a
13643416a
1440b0026
152a341a4
hex1d203d2

30540754 has 4 divisors (see below), whose sum is σ = 45811134. Its totient is φ = 15270376.

The previous prime is 30540749. The next prime is 30540817. The reversal of 30540754 is 45704503.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45704503 = 133515731.

It can be written as a sum of positive squares in only one way, i.e., 30525625 + 15129 = 5525^2 + 123^2 .

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, 7635187 + ... + 7635190.

Almost surely, 230540754 is an apocalyptic number.

30540754 is a deficient number, since it is larger than the sum of its proper divisors (15270380).

30540754 is a wasteful number, since it uses less digits than its factorization.

30540754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15270379.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 30540754 is about 5526.3689706714. The cubic root of 30540754 is about 312.5790869698.

The spelling of 30540754 in words is "thirty million, five hundred forty thousand, seven hundred fifty-four".

Divisors: 1 2 15270377 30540754