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30220013970 = 2325335777933
BaseRepresentation
bin11100001001010000…
…001101000110010010
32220000002021202210200
4130021100031012102
5443342310421340
621514411440030
72116610610666
oct341120150622
986002252720
1030220013970
11118a8456863
125a34756016
132b07b38c93
14166975a8a6
15bbd0d8330
hex70940d192

30220013970 has 24 divisors (see below), whose sum is σ = 78572036556. Its totient is φ = 8058670368.

The previous prime is 30220013939. The next prime is 30220013981. The reversal of 30220013970 is 7931002203.

It can be written as a sum of positive squares in 2 ways, for example, as 29842217001 + 377796969 = 172749^2 + 19437^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 167888877 + ... + 167889056.

Almost surely, 230220013970 is an apocalyptic number.

30220013970 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30220013970 is an abundant number, since it is smaller than the sum of its proper divisors (48352022586).

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

30220013970 is a wasteful number, since it uses less digits than its factorization.

30220013970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335777946 (or 335777943 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The spelling of 30220013970 in words is "thirty billion, two hundred twenty million, thirteen thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 335777933 671555866 1007333799 1678889665 2014667598 3022001397 3357779330 5036668995 6044002794 10073337990 15110006985 30220013970