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30199590 = 23253071093
BaseRepresentation
bin111001100110…
…0111100100110
32002211022001100
41303030330212
530212341330
62555140530
7514456311
oct163147446
962738040
1030199590
1116057443
12a144746
136344aa5
144021978
1529b8060
hex1cccf26

30199590 has 48 divisors (see below), whose sum is σ = 78846768. Its totient is φ = 8019648.

The previous prime is 30199579. The next prime is 30199591. The reversal of 30199590 is 9599103.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30199591) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27084 + ... + 28176.

It is an arithmetic number, because the mean of its divisors is an integer number (1642641).

Almost surely, 230199590 is an apocalyptic number.

30199590 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30199590 is an abundant number, since it is smaller than the sum of its proper divisors (48647178).

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

30199590 is a wasteful number, since it uses less digits than its factorization.

30199590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413 (or 1410 counting only the distinct ones).

The product of its (nonzero) digits is 10935, while the sum is 36.

The square root of 30199590 is about 5495.4153619176. The cubic root of 30199590 is about 311.4108086630.

The spelling of 30199590 in words is "thirty million, one hundred ninety-nine thousand, five hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 307 614 921 1093 1535 1842 2186 2763 3070 3279 4605 5465 5526 6558 9210 9837 10930 13815 16395 19674 27630 32790 49185 98370 335551 671102 1006653 1677755 2013306 3019959 3355510 5033265 6039918 10066530 15099795 30199590