Search a number
-
+
30221312010 = 2351007377067
BaseRepresentation
bin11100001001010101…
…001010000000001010
32220000011201201101020
4130021111022000022
5443343123441020
621514455333310
72116624625241
oct341125120012
986004651336
1030221312010
11118a916301a
125a35081236
132b081a1a56
1416699b7958
15bbd292c40
hex70954a00a

30221312010 has 16 divisors (see below), whose sum is σ = 72531148896. Its totient is φ = 8059016528.

The previous prime is 30221311957. The next prime is 30221312027. The reversal of 30221312010 is 1021312203.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503688504 + ... + 503688563.

It is an arithmetic number, because the mean of its divisors is an integer number (4533196806).

Almost surely, 230221312010 is an apocalyptic number.

30221312010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30221312010 is an abundant number, since it is smaller than the sum of its proper divisors (42309836886).

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

30221312010 is a wasteful number, since it uses less digits than its factorization.

30221312010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007377077.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30221312010 its reverse (1021312203), we get a palindrome (31242624213).

The spelling of 30221312010 in words is "thirty billion, two hundred twenty-one million, three hundred twelve thousand, ten".

Divisors: 1 2 3 5 6 10 15 30 1007377067 2014754134 3022131201 5036885335 6044262402 10073770670 15110656005 30221312010