Search a number
-
+
30113490 = 2351191253
BaseRepresentation
bin111001011011…
…1111011010010
32002122220221110
41302313323102
530202112430
62553234150
7513650301
oct162677322
962586843
1030113490
1115aa8790
12a102956
136314844
143ddc438
15299c7b0
hex1cb7ed2

30113490 has 32 divisors (see below), whose sum is σ = 78843456. Its totient is φ = 7300160.

The previous prime is 30113471. The next prime is 30113491. The reversal of 30113490 is 9431103.

It is not an unprimeable number, because it can be changed into a prime (30113491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45297 + ... + 45956.

It is an arithmetic number, because the mean of its divisors is an integer number (2463858).

Almost surely, 230113490 is an apocalyptic number.

30113490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30113490 is an abundant number, since it is smaller than the sum of its proper divisors (48729966).

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

30113490 is a wasteful number, since it uses less digits than its factorization.

30113490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91274.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 30113490 is about 5487.5759675835. The cubic root of 30113490 is about 311.1145795626.

Adding to 30113490 its reverse (9431103), we get a palindrome (39544593).

It can be divided in two parts, 30113 and 490, that added together give a palindrome (30603).

The spelling of 30113490 in words is "thirty million, one hundred thirteen thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 91253 182506 273759 456265 547518 912530 1003783 1368795 2007566 2737590 3011349 5018915 6022698 10037830 15056745 30113490