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30222101 = 713259433
BaseRepresentation
bin111001101001…
…0011100010101
32002212102221002
41303102130111
530214101401
62555433045
7514612040
oct163223425
962772832
1030222101
1116072348
12a155785
136352100
144029c57
1529bea6b
hex1cd2715

30222101 has 24 divisors (see below), whose sum is σ = 38122560. Its totient is φ = 23452416.

The previous prime is 30222041. The next prime is 30222109. The reversal of 30222101 is 10122203.

It is a happy number.

It is not a de Polignac number, because 30222101 - 26 = 30222037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30222109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69581 + ... + 70013.

It is an arithmetic number, because the mean of its divisors is an integer number (1588440).

Almost surely, 230222101 is an apocalyptic number.

It is an amenable number.

30222101 is a deficient number, since it is larger than the sum of its proper divisors (7900459).

30222101 is a wasteful number, since it uses less digits than its factorization.

30222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 30222101 is about 5497.4631422139. The cubic root of 30222101 is about 311.4881654265.

Adding to 30222101 its reverse (10122203), we get a palindrome (40344304).

The spelling of 30222101 in words is "thirty million, two hundred twenty-two thousand, one hundred one".

Divisors: 1 7 13 59 91 169 413 433 767 1183 3031 5369 5629 9971 25547 39403 69797 73177 178829 332111 512239 2324777 4317443 30222101