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30122112210 = 2351004070407
BaseRepresentation
bin11100000011011010…
…101111010011010010
32212202021001211211120
4130003122233103102
5443142230042320
621500553223110
72114311505061
oct340332572322
985667054746
1030122112210
1111858168813
125a07a01a96
132ac077b548
14165a7541d8
15bb46ea440
hex7036af4d2

30122112210 has 16 divisors (see below), whose sum is σ = 72293069376. Its totient is φ = 8032563248.

The previous prime is 30122112203. The next prime is 30122112233. The reversal of 30122112210 is 1221122103.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30122112210.

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, 502035174 + ... + 502035233.

It is an arithmetic number, because the mean of its divisors is an integer number (4518316836).

Almost surely, 230122112210 is an apocalyptic number.

30122112210 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30122112210 is an abundant number, since it is smaller than the sum of its proper divisors (42170957166).

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

30122112210 is a wasteful number, since it uses less digits than its factorization.

30122112210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004070417.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 30122112210 its reverse (1221122103), we get a palindrome (31343234313).

The spelling of 30122112210 in words is "thirty billion, one hundred twenty-two million, one hundred twelve thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 1004070407 2008140814 3012211221 5020352035 6024422442 10040704070 15061056105 30122112210