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30589542 = 2331095197
BaseRepresentation
bin111010010110…
…0001001100110
32010120002222000
41310230021212
530312331132
63011350130
7521002224
oct164541146
963502860
1030589542
11162a3415
12a2b2346
136450429
1440c3b14
152a4387c
hex1d2c266

30589542 has 32 divisors (see below), whose sum is σ = 68613600. Its totient is φ = 10101024.

The previous prime is 30589541. The next prime is 30589571. The reversal of 30589542 is 24598503.

30589542 is a `hidden beast` number, since 30 + 5 + 89 + 542 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 30589497 and 30589506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30589541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3288 + ... + 8484.

It is an arithmetic number, because the mean of its divisors is an integer number (2144175).

Almost surely, 230589542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30589542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34306800).

30589542 is an abundant number, since it is smaller than the sum of its proper divisors (38024058).

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

30589542 is a wasteful number, since it uses less digits than its factorization.

30589542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5317 (or 5311 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 30589542 is about 5530.7813191266. The cubic root of 30589542 is about 312.7454438663.

The spelling of 30589542 in words is "thirty million, five hundred eighty-nine thousand, five hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 109 218 327 654 981 1962 2943 5197 5886 10394 15591 31182 46773 93546 140319 280638 566473 1132946 1699419 3398838 5098257 10196514 15294771 30589542