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30543044 = 2274723209
BaseRepresentation
bin111010010000…
…0110011000100
32010110202011212
41310200303010
530304334134
63010350552
7520416530
oct164406304
963422155
1030543044
1116271494
12a28b458
13643520c
1440b0bc0
152a34bce
hex1d20cc4

30543044 has 24 divisors (see below), whose sum is σ = 62388480. Its totient is φ = 12810816.

The previous prime is 30543041. The next prime is 30543047. The reversal of 30543044 is 44034503.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30543041) and next prime (30543047).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30543041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10289 + ... + 12920.

It is an arithmetic number, because the mean of its divisors is an integer number (2599520).

Almost surely, 230543044 is an apocalyptic number.

It is an amenable number.

30543044 is an abundant number, since it is smaller than the sum of its proper divisors (31845436).

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

30543044 is a wasteful number, since it uses less digits than its factorization.

30543044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23267 (or 23265 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 30543044 is about 5526.5761552701. The cubic root of 30543044 is about 312.5868993530.

Adding to 30543044 its reverse (44034503), we get a palindrome (74577547).

The spelling of 30543044 in words is "thirty million, five hundred forty-three thousand, forty-four".

Divisors: 1 2 4 7 14 28 47 94 188 329 658 1316 23209 46418 92836 162463 324926 649852 1090823 2181646 4363292 7635761 15271522 30543044