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312104010220 = 22576912029021
BaseRepresentation
bin1001000101010101101…
…10010100000111101100
31002211121001202110021221
410202222312110013230
520103142111311340
6355213440033124
731356141213022
oct4425266240754
91084531673257
10312104010220
111103a9639332
12505a30027a4
132357b6ac332
141116a8b6712
1581ba12744a
hex48aad941ec

312104010220 has 24 divisors (see below), whose sum is σ = 655503963408. Its totient is φ = 124825310400.

The previous prime is 312104010217. The next prime is 312104010287. The reversal of 312104010220 is 22010401213.

It is a junction number, because it is equal to n+sod(n) for n = 312104010194 and 312104010203.

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, 860691 + ... + 1168330.

It is an arithmetic number, because the mean of its divisors is an integer number (27312665142).

Almost surely, 2312104010220 is an apocalyptic number.

It is an amenable number.

312104010220 is an abundant number, since it is smaller than the sum of its proper divisors (343399953188).

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

312104010220 is a wasteful number, since it uses less digits than its factorization.

312104010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036721 (or 2036719 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 312104010220 its reverse (22010401213), we get a palindrome (334114411433).

The spelling of 312104010220 in words is "three hundred twelve billion, one hundred four million, ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 7691 15382 30764 38455 76910 153820 2029021 4058042 8116084 10145105 20290210 40580420 15605200511 31210401022 62420802044 78026002555 156052005110 312104010220