Search a number
-
+
30204604830 = 2357379174583
BaseRepresentation
bin11100001000010101…
…011011000110011110
32212222000021220102210
4130020111123012132
5443324334323310
621513101301250
72116332622251
oct341025330636
985860256383
1030204604830
111189a791734
125a2b564826
132b048a234a
1416676a9098
15bbba92820
hex70855b19e

30204604830 has 64 divisors (see below), whose sum is σ = 74414684160. Its totient is φ = 7843620096.

The previous prime is 30204604747. The next prime is 30204604831. The reversal of 30204604830 is 3840640203.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30204604831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85719 + ... + 260301.

It is an arithmetic number, because the mean of its divisors is an integer number (1162729440).

Almost surely, 230204604830 is an apocalyptic number.

30204604830 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30204604830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37207342080).

30204604830 is an abundant number, since it is smaller than the sum of its proper divisors (44210079330).

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

30204604830 is a wasteful number, since it uses less digits than its factorization.

30204604830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174745.

The product of its (nonzero) digits is 13824, while the sum is 30.

The spelling of 30204604830 in words is "thirty billion, two hundred four million, six hundred four thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 73 79 146 158 219 237 365 395 438 474 730 790 1095 1185 2190 2370 5767 11534 17301 28835 34602 57670 86505 173010 174583 349166 523749 872915 1047498 1745830 2618745 5237490 12744559 13792057 25489118 27584114 38233677 41376171 63722795 68960285 76467354 82752342 127445590 137920570 191168385 206880855 382336770 413761710 1006820161 2013640322 3020460483 5034100805 6040920966 10068201610 15102302415 30204604830