Search a number
-
+
112002021 = 3413710093
BaseRepresentation
bin1101010110100…
…00001111100101
321210202021220000
412223100033211
5212133031041
615040331513
72530000335
oct653201745
9253667800
10112002021
115824985a
1231613b99
131a2866b1
1410c370c5
159c75bb6
hex6ad03e5

112002021 has 20 divisors (see below), whose sum is σ = 168549612. Its totient is φ = 74115648.

The previous prime is 112001963. The next prime is 112002029. The reversal of 112002021 is 120200211.

It can be written as a sum of positive squares in 2 ways, for example, as 61449921 + 50552100 = 7839^2 + 7110^2 .

It is not a de Polignac number, because 112002021 - 217 = 111870949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 112001994 and 112002012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112002029) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6051 + ... + 16143.

Almost surely, 2112002021 is an apocalyptic number.

It is an amenable number.

112002021 is a deficient number, since it is larger than the sum of its proper divisors (56547591).

112002021 is a wasteful number, since it uses less digits than its factorization.

112002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10242 (or 10233 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 112002021 is about 10583.1007271026. The cubic root of 112002021 is about 482.0313521614.

Adding to 112002021 its reverse (120200211), we get a palindrome (232202232).

The spelling of 112002021 in words is "one hundred twelve million, two thousand, twenty-one".

Divisors: 1 3 9 27 81 137 411 1233 3699 10093 11097 30279 90837 272511 817533 1382741 4148223 12444669 37334007 112002021