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30108000 = 2535313193
BaseRepresentation
bin111001011011…
…0100101100000
32002122122102010
41302312211200
530201424000
62553152520
7513625266
oct162664540
962578363
1030108000
1115aa464a
12a0bb740
1363121b0
143dda436
15299ad50
hex1cb6960

30108000 has 192 divisors, whose sum is σ = 106771392. Its totient is φ = 7372800.

The previous prime is 30107993. The next prime is 30108007. The reversal of 30108000 is 80103.

It is an interprime number because it is at equal distance from previous prime (30107993) and next prime (30108007).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30108007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155904 + ... + 156096.

It is an arithmetic number, because the mean of its divisors is an integer number (556101).

Almost surely, 230108000 is an apocalyptic number.

30108000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30108000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53385696).

30108000 is an abundant number, since it is smaller than the sum of its proper divisors (76663392).

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

30108000 is a wasteful number, since it uses less digits than its factorization.

30108000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 30108000 is about 5487.0757239171. The cubic root of 30108000 is about 311.0956719474.

Adding to 30108000 its reverse (80103), we get a palindrome (30188103).

It can be divided in two parts, 30 and 108000, that multiplied together give a square (3240000 = 18002).

The spelling of 30108000 in words is "thirty million, one hundred eight thousand".