Search a number
-
+
30013896 = 23311234943
BaseRepresentation
bin111001001111…
…1100111001000
32002110212022210
41302133213020
530140421041
62551145120
7513054033
oct162374710
962425283
1030013896
1115a3a980
12a0751a0
1362ab403
143db401a
15297d016
hex1c9f9c8

30013896 has 64 divisors (see below), whose sum is σ = 85432320. Its totient is φ = 8697920.

The previous prime is 30013861. The next prime is 30013903. The reversal of 30013896 is 69831003.

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, 3601 + ... + 8543.

It is an arithmetic number, because the mean of its divisors is an integer number (1334880).

Almost surely, 230013896 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 30013896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42716160).

30013896 is an abundant number, since it is smaller than the sum of its proper divisors (55418424).

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

30013896 is a wasteful number, since it uses less digits than its factorization.

30013896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4986 (or 4982 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 30013896 is about 5478.4939536336. The cubic root of 30013896 is about 310.7712188597.

Adding to 30013896 its reverse (69831003), we get a palindrome (99844899).

It can be divided in two parts, 300 and 13896, that added together give a triangular number (14196 = T168).

The spelling of 30013896 in words is "thirty million, thirteen thousand, eight hundred ninety-six".

Divisors: 1 2 3 4 6 8 11 12 22 23 24 33 44 46 66 69 88 92 132 138 184 253 264 276 506 552 759 1012 1518 2024 3036 4943 6072 9886 14829 19772 29658 39544 54373 59316 108746 113689 118632 163119 217492 227378 326238 341067 434984 454756 652476 682134 909512 1250579 1304952 1364268 2501158 2728536 3751737 5002316 7503474 10004632 15006948 30013896