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3112200421 = 111754130763
BaseRepresentation
bin1011100110000000…
…0110100011100101
322000220011011101021
42321200012203211
522333210403141
61232453131141
7140060160421
oct27140064345
98026134337
103112200421
111357835270
1272a329ab1
133a7a0a315
14217491b81
151333586d1
hexb98068e5

3112200421 has 16 divisors (see below), whose sum is σ = 3601603008. Its totient is φ = 2657836800.

The previous prime is 3112200359. The next prime is 3112200433. The reversal of 3112200421 is 1240022113.

It is a cyclic number.

It is not a de Polignac number, because 3112200421 - 223 = 3103811813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3112200395 and 3112200404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112200521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85786 + ... + 116548.

It is an arithmetic number, because the mean of its divisors is an integer number (225100188).

Almost surely, 23112200421 is an apocalyptic number.

It is an amenable number.

3112200421 is a deficient number, since it is larger than the sum of its proper divisors (489402587).

3112200421 is a wasteful number, since it uses less digits than its factorization.

3112200421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31332.

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

The square root of 3112200421 is about 55787.0990552475. The cubic root of 3112200421 is about 1460.0100738968.

Adding to 3112200421 its reverse (1240022113), we get a palindrome (4352222534).

The spelling of 3112200421 in words is "three billion, one hundred twelve million, two hundred thousand, four hundred twenty-one".

Divisors: 1 11 17 187 541 5951 9197 30763 101167 338393 522971 5752681 16642783 183070613 282927311 3112200421