Search a number
-
+
30124480 = 265234093
BaseRepresentation
bin111001011101…
…0100111000000
32002200111000111
41302322213000
530202440410
62553401104
7514024321
oct162724700
962614014
1030124480
1116005a71
12a109194
136319849
144002448
1529a0b8a
hex1cba9c0

30124480 has 56 divisors (see below), whose sum is σ = 74871072. Its totient is φ = 11523072.

The previous prime is 30124477. The next prime is 30124483. The reversal of 30124480 is 8442103.

It is an interprime number because it is at equal distance from previous prime (30124477) and next prime (30124483).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30124483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5314 + ... + 9406.

Almost surely, 230124480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30124480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37435536).

30124480 is an abundant number, since it is smaller than the sum of its proper divisors (44746592).

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

30124480 is a wasteful number, since it uses less digits than its factorization.

30124480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4133 (or 4123 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 30124480 is about 5488.5772291187. The cubic root of 30124480 is about 311.1524223298.

Adding to 30124480 its reverse (8442103), we get a palindrome (38566583).

The spelling of 30124480 in words is "thirty million, one hundred twenty-four thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 23 32 40 46 64 80 92 115 160 184 230 320 368 460 736 920 1472 1840 3680 4093 7360 8186 16372 20465 32744 40930 65488 81860 94139 130976 163720 188278 261952 327440 376556 470695 654880 753112 941390 1309760 1506224 1882780 3012448 3765560 6024896 7531120 15062240 30124480