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30544349 = 113318389
BaseRepresentation
bin111010010000…
…1000111011101
32010110210222012
41310201013131
530304404344
63010401005
7520423403
oct164410735
963423865
1030544349
1116272470
12a290165
1364359a4
1440b1473
152a3529e
hex1d211dd

30544349 has 8 divisors (see below), whose sum is σ = 33425760. Its totient is φ = 27680400.

The previous prime is 30544333. The next prime is 30544357. The reversal of 30544349 is 94344503.

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

It is not a de Polignac number, because 30544349 - 24 = 30544333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30544399) 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 in 7 ways as a sum of consecutive naturals, for example, 554 + ... + 7835.

It is an arithmetic number, because the mean of its divisors is an integer number (4178220).

Almost surely, 230544349 is an apocalyptic number.

It is an amenable number.

30544349 is a deficient number, since it is larger than the sum of its proper divisors (2881411).

30544349 is a wasteful number, since it uses less digits than its factorization.

30544349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8731.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 30544349 is about 5526.6942198750. The cubic root of 30544349 is about 312.5913512133.

The spelling of 30544349 in words is "thirty million, five hundred forty-four thousand, three hundred forty-nine".

Divisors: 1 11 331 3641 8389 92279 2776759 30544349