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30270944 = 2511233739
BaseRepresentation
bin111001101111…
…0010111100000
32002221220221002
41303132113200
530222132234
63000451132
7515204324
oct163362740
962856832
1030270944
11160a6010
12a179aa8
13636b402
14403d984
1529ce27e
hex1cde5e0

30270944 has 48 divisors (see below), whose sum is σ = 67858560. Its totient is φ = 13157760.

The previous prime is 30270937. The next prime is 30270949. The reversal of 30270944 is 44907203.

It is a super-3 number, since 3×302709443 (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30270949) 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, 6227 + ... + 9965.

It is an arithmetic number, because the mean of its divisors is an integer number (1413720).

Almost surely, 230270944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30270944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33929280).

30270944 is an abundant number, since it is smaller than the sum of its proper divisors (37587616).

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

30270944 is a wasteful number, since it uses less digits than its factorization.

30270944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3783 (or 3775 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 30270944 is about 5501.9036705489. The cubic root of 30270944 is about 311.6558774357.

The spelling of 30270944 in words is "thirty million, two hundred seventy thousand, nine hundred forty-four".

Divisors: 1 2 4 8 11 16 22 23 32 44 46 88 92 176 184 253 352 368 506 736 1012 2024 3739 4048 7478 8096 14956 29912 41129 59824 82258 85997 119648 164516 171994 329032 343988 658064 687976 945967 1316128 1375952 1891934 2751904 3783868 7567736 15135472 30270944