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30228632 = 237539797
BaseRepresentation
bin111001101010…
…0000010011000
32002212202212222
41303110002120
530214304012
62555523212
7514640060
oct163240230
962782788
1030228632
1116077245
12a159508
136355085
14402c3a0
1529c1972
hex1cd4098

30228632 has 16 divisors (see below), whose sum is σ = 64775760. Its totient is φ = 12955104.

The previous prime is 30228607. The next prime is 30228637. The reversal of 30228632 is 23682203.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30228637) 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, 269843 + ... + 269954.

It is an arithmetic number, because the mean of its divisors is an integer number (4048485).

Almost surely, 230228632 is an apocalyptic number.

It is an amenable number.

30228632 is an abundant number, since it is smaller than the sum of its proper divisors (34547128).

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

30228632 is a wasteful number, since it uses less digits than its factorization.

30228632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539810 (or 539806 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 30228632 is about 5498.0571113803. The cubic root of 30228632 is about 311.5106013550.

The spelling of 30228632 in words is "thirty million, two hundred twenty-eight thousand, six hundred thirty-two".

Divisors: 1 2 4 7 8 14 28 56 539797 1079594 2159188 3778579 4318376 7557158 15114316 30228632