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30000168 = 23321137879
BaseRepresentation
bin111001001110…
…0010000101000
32002110011111100
41302130100220
530140001133
62551001400
7512666022
oct162342050
962404440
1030000168
1115a30630
12a069260
1362a50a3
143dad012
152978e13
hex1c9c428

30000168 has 48 divisors (see below), whose sum is σ = 88639200. Its totient is φ = 9090720.

The previous prime is 30000167. The next prime is 30000169. The reversal of 30000168 is 86100003.

It is an interprime number because it is at equal distance from previous prime (30000167) and next prime (30000169).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 30000168.

It is not an unprimeable number, because it can be changed into a prime (30000163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18148 + ... + 19731.

It is an arithmetic number, because the mean of its divisors is an integer number (1846650).

Almost surely, 230000168 is an apocalyptic number.

It is an amenable number.

30000168 is an abundant number, since it is smaller than the sum of its proper divisors (58639032).

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

30000168 is a wasteful number, since it uses less digits than its factorization.

30000168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37902 (or 37895 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 30000168 is about 5477.2409112618. The cubic root of 30000168 is about 310.7238306110.

The spelling of 30000168 in words is "thirty million, one hundred sixty-eight", and thus it is an aban number.

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 33 36 44 66 72 88 99 132 198 264 396 792 37879 75758 113637 151516 227274 303032 340911 416669 454548 681822 833338 909096 1250007 1363644 1666676 2500014 2727288 3333352 3750021 5000028 7500042 10000056 15000084 30000168