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30107248 = 2419971021
BaseRepresentation
bin111001011011…
…0011001110000
32002122121101021
41302312121300
530201412443
62553145224
7513623143
oct162663160
962577337
1030107248
1115aa4026
12a0bb214
136311a52
143dda05a
15299a9ed
hex1cb6670

30107248 has 40 divisors (see below), whose sum is σ = 62096720. Its totient is φ = 14100480.

The previous prime is 30107227. The next prime is 30107269. The reversal of 30107248 is 84270103.

It is an interprime number because it is at equal distance from previous prime (30107227) and next prime (30107269).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28978 + ... + 29998.

It is an arithmetic number, because the mean of its divisors is an integer number (1552418).

Almost surely, 230107248 is an apocalyptic number.

30107248 is a gapful number since it is divisible by the number (38) 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 30107248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31048360).

30107248 is an abundant number, since it is smaller than the sum of its proper divisors (31989472).

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

30107248 is a wasteful number, since it uses less digits than its factorization.

30107248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145 (or 1139 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 30107248 is about 5487.0071988289. The cubic root of 30107248 is about 311.0930818728.

The spelling of 30107248 in words is "thirty million, one hundred seven thousand, two hundred forty-eight".

Divisors: 1 2 4 8 16 19 38 76 97 152 194 304 388 776 1021 1552 1843 2042 3686 4084 7372 8168 14744 16336 19399 29488 38798 77596 99037 155192 198074 310384 396148 792296 1584592 1881703 3763406 7526812 15053624 30107248