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30865088 = 263147331
BaseRepresentation
bin111010110111…
…1011011000000
32011002002221102
41311233123000
530400140323
63021313532
7523230452
oct165573300
964062842
1030865088
1116471441
12a4058a8
136518987
1441562d2
152a9a328
hex1d6f6c0

30865088 has 56 divisors (see below), whose sum is σ = 64763904. Its totient is φ = 14572800.

The previous prime is 30865073. The next prime is 30865123. The reversal of 30865088 is 88056803.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93083 + ... + 93413.

Almost surely, 230865088 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 30865088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32381952).

30865088 is an abundant number, since it is smaller than the sum of its proper divisors (33898816).

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

30865088 is a wasteful number, since it uses less digits than its factorization.

30865088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 30865088 is about 5555.6356971997. The cubic root of 30865088 is about 313.6816929334.

The spelling of 30865088 in words is "thirty million, eight hundred sixty-five thousand, eighty-eight".

Divisors: 1 2 4 8 16 31 32 47 62 64 94 124 188 248 331 376 496 662 752 992 1324 1457 1504 1984 2648 2914 3008 5296 5828 10261 10592 11656 15557 20522 21184 23312 31114 41044 46624 62228 82088 93248 124456 164176 248912 328352 482267 497824 656704 964534 995648 1929068 3858136 7716272 15432544 30865088