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30221022042 = 23210891154159
BaseRepresentation
bin11100001001010100…
…000011001101011010
32220000011011222121200
4130021110003031122
5443343040201132
621514445215030
72116622306661
oct341124031532
986004158550
1030221022042
11118a8a85182
125a34b61476
132b080cca83
14166993ddd8
15bbd236d7c
hex70950335a

30221022042 has 24 divisors (see below), whose sum is σ = 65485318080. Its totient is φ = 10072683720.

The previous prime is 30221022011. The next prime is 30221022053. The reversal of 30221022042 is 24022012203.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118959 + ... + 273117.

It is an arithmetic number, because the mean of its divisors is an integer number (2728554920).

Almost surely, 230221022042 is an apocalyptic number.

30221022042 is an abundant number, since it is smaller than the sum of its proper divisors (35264296038).

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

30221022042 is a wasteful number, since it uses less digits than its factorization.

30221022042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165058 (or 165055 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 30221022042 its reverse (24022012203), we get a palindrome (54243034245).

The spelling of 30221022042 in words is "thirty billion, two hundred twenty-one million, twenty-two thousand, forty-two".

Divisors: 1 2 3 6 9 18 10891 21782 32673 65346 98019 154159 196038 308318 462477 924954 1387431 2774862 1678945669 3357891338 5036837007 10073674014 15110511021 30221022042