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20122200112 = 2471759102139
BaseRepresentation
bin10010101111011000…
…000110100000110000
31220221100110200021211
4102233120012200300
5312202240400422
613124412325504
71311434610310
oct225730064060
956840420254
1020122200112
118596503853
123a96a73894
131b88ac20b1
14d8c615440
157cb858577
hex4af606830

20122200112 has 40 divisors (see below), whose sum is σ = 44582067200. Its totient is φ = 8618812992.

The previous prime is 20122200089. The next prime is 20122200179. The reversal of 20122200112 is 21100222102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20122200092 and 20122200101.

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, 145939 + ... + 248077.

It is an arithmetic number, because the mean of its divisors is an integer number (1114551680).

Almost surely, 220122200112 is an apocalyptic number.

It is an amenable number.

20122200112 is an abundant number, since it is smaller than the sum of its proper divisors (24459867088).

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

20122200112 is a wasteful number, since it uses less digits than its factorization.

20122200112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103913 (or 103907 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20122200112 its reverse (21100222102), we get a palindrome (41222422214).

The spelling of 20122200112 in words is "twenty billion, one hundred twenty-two million, two hundred thousand, one hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 56 112 1759 3518 7036 12313 14072 24626 28144 49252 98504 102139 197008 204278 408556 714973 817112 1429946 1634224 2859892 5719784 11439568 179662501 359325002 718650004 1257637507 1437300008 2515275014 2874600016 5030550028 10061100056 20122200112