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30916030 = 2517296271
BaseRepresentation
bin111010111101…
…1110110111110
32011011200211011
41311323312332
530403303110
63022345434
7523532125
oct165736676
964150734
1030916030
11164a6742
12a42b27a
136535c12
14416aabc
152aaa48a
hex1d7bdbe

30916030 has 32 divisors (see below), whose sum is σ = 60963840. Its totient is φ = 11235840.

The previous prime is 30915977. The next prime is 30916033. The reversal of 30916030 is 3061903.

It is a junction number, because it is equal to n+sod(n) for n = 30915992 and 30916010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30916033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1795 + ... + 8065.

It is an arithmetic number, because the mean of its divisors is an integer number (1905120).

Almost surely, 230916030 is an apocalyptic number.

30916030 is a deficient number, since it is larger than the sum of its proper divisors (30047810).

30916030 is a wasteful number, since it uses less digits than its factorization.

30916030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6324.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 30916030 is about 5560.2185208857. The cubic root of 30916030 is about 313.8541724845.

Adding to 30916030 its reverse (3061903), we get a palindrome (33977933).

The spelling of 30916030 in words is "thirty million, nine hundred sixteen thousand, thirty".

Divisors: 1 2 5 10 17 29 34 58 85 145 170 290 493 986 2465 4930 6271 12542 31355 62710 106607 181859 213214 363718 533035 909295 1066070 1818590 3091603 6183206 15458015 30916030