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30000060 = 22325166667
BaseRepresentation
bin111001001110…
…0001110111100
32002110011100100
41302130032330
530140000220
62551001100
7512665506
oct162341674
962404310
1030000060
1115a30542
12a069190
1362a501c
143dacd76
152978d90
hex1c9c3bc

30000060 has 36 divisors (see below), whose sum is σ = 91000728. Its totient is φ = 7999968.

The previous prime is 30000059. The next prime is 30000071. The reversal of 30000060 is 6000003.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a junction number, because it is equal to n+sod(n) for n = 29999997 and 30000051.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83154 + ... + 83513.

It is an arithmetic number, because the mean of its divisors is an integer number (2527798).

Almost surely, 230000060 is an apocalyptic number.

30000060 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30000060 is an abundant number, since it is smaller than the sum of its proper divisors (61000668).

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

30000060 is a wasteful number, since it uses less digits than its factorization.

30000060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166682 (or 166677 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 30000060 is about 5477.2310522745. The cubic root of 30000060 is about 310.7234577441.

Adding to 30000060 its reverse (6000003), we get a palindrome (36000063).

The spelling of 30000060 in words is "thirty million, sixty", and thus it is an aban number, an eban number, and an uban number.

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 166667 333334 500001 666668 833335 1000002 1500003 1666670 2000004 2500005 3000006 3333340 5000010 6000012 7500015 10000020 15000030 30000060