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30544842 = 235090807
BaseRepresentation
bin111010010000…
…1001111001010
32010110211122110
41310201033022
530304413332
63010403150
7520425006
oct164411712
963424573
1030544842
1116272879
12a2904b6
136435c93
1440b1706
152a354cc
hex1d213ca

30544842 has 8 divisors (see below), whose sum is σ = 61089696. Its totient is φ = 10181612.

The previous prime is 30544841. The next prime is 30544849. The reversal of 30544842 is 24844503.

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

30544842 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (30544841) 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, 2545398 + ... + 2545409.

It is an arithmetic number, because the mean of its divisors is an integer number (7636212).

Almost surely, 230544842 is an apocalyptic number.

30544842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30544842 is a wasteful number, since it uses less digits than its factorization.

30544842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5090812.

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 30544842 is about 5526.7388214027. The cubic root of 30544842 is about 312.5930329941.

The spelling of 30544842 in words is "thirty million, five hundred forty-four thousand, eight hundred forty-two".

Divisors: 1 2 3 6 5090807 10181614 15272421 30544842