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30205464 = 23317101733
BaseRepresentation
bin111001100111…
…0011000011000
32002211121002220
41303032120120
530213033324
62555224040
7514512402
oct163163030
962747086
1030205464
11160608a3
12a148020
136347673
144023b72
1529b9b79
hex1cce618

30205464 has 64 divisors (see below), whose sum is σ = 80857440. Its totient is φ = 9369600.

The previous prime is 30205451. The next prime is 30205489. The reversal of 30205464 is 46450203.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40842 + ... + 41574.

Almost surely, 230205464 is an apocalyptic number.

30205464 is a gapful number since it is divisible by the number (34) 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 30205464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40428720).

30205464 is an abundant number, since it is smaller than the sum of its proper divisors (50651976).

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

30205464 is a wasteful number, since it uses less digits than its factorization.

30205464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860 (or 856 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 30205464 is about 5495.9497814300. The cubic root of 30205464 is about 311.4309977727.

Adding to 30205464 its reverse (46450203), we get a palindrome (76655667).

The spelling of 30205464 in words is "thirty million, two hundred five thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 101 102 136 202 204 303 404 408 606 733 808 1212 1466 1717 2199 2424 2932 3434 4398 5151 5864 6868 8796 10302 12461 13736 17592 20604 24922 37383 41208 49844 74033 74766 99688 148066 149532 222099 296132 299064 444198 592264 888396 1258561 1776792 2517122 3775683 5034244 7551366 10068488 15102732 30205464