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30344130 = 232523107137
BaseRepresentation
bin111001111000…
…0001111000010
32010002122022200
41303300033002
530232003010
63002214030
7515630565
oct163601702
963078280
1030344130
1116145aa3
12a1b4316
13639580b
14405c4dc
1529e5cc0
hex1cf03c2

30344130 has 96 divisors (see below), whose sum is σ = 83700864. Its totient is φ = 7611648.

The previous prime is 30344101. The next prime is 30344147. The reversal of 30344130 is 3144303.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 221422 + ... + 221558.

It is an arithmetic number, because the mean of its divisors is an integer number (871884).

Almost surely, 230344130 is an apocalyptic number.

30344130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30344130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41850432).

30344130 is an abundant number, since it is smaller than the sum of its proper divisors (53356734).

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

30344130 is a wasteful number, since it uses less digits than its factorization.

30344130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 30344130 is about 5508.5506260722. The cubic root of 30344130 is about 311.9068385561.

Adding to 30344130 its reverse (3144303), we get a palindrome (33488433).

The spelling of 30344130 in words is "thirty million, three hundred forty-four thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 23 30 45 46 69 90 107 115 137 138 207 214 230 274 321 345 411 414 535 642 685 690 822 963 1035 1070 1233 1370 1605 1926 2055 2070 2461 2466 3151 3210 4110 4815 4922 6165 6302 7383 9453 9630 12305 12330 14659 14766 15755 18906 22149 24610 28359 29318 31510 36915 43977 44298 47265 56718 73295 73830 87954 94530 110745 131931 141795 146590 219885 221490 263862 283590 337157 439770 659655 674314 1011471 1319310 1685785 2022942 3034413 3371570 5057355 6068826 10114710 15172065 30344130