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2122031444 = 221340808297
BaseRepresentation
bin111111001111011…
…1010000101010100
312110212222100220012
41332132322011110
513321220001234
6550322255352
7103404653411
oct17636720524
95425870805
102122031444
119999166a5
124b27b7558
1327a832b10
14161b83108
15c646a0ce
hex7e7ba154

2122031444 has 12 divisors (see below), whose sum is σ = 3999213204. Its totient is φ = 979399104.

The previous prime is 2122031419. The next prime is 2122031453. The reversal of 2122031444 is 4441302212.

It can be written as a sum of positive squares in 2 ways, for example, as 617522500 + 1504508944 = 24850^2 + 38788^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20404097 + ... + 20404200.

It is an arithmetic number, because the mean of its divisors is an integer number (333267767).

Almost surely, 22122031444 is an apocalyptic number.

It is an amenable number.

2122031444 is a deficient number, since it is larger than the sum of its proper divisors (1877181760).

2122031444 is a wasteful number, since it uses less digits than its factorization.

2122031444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40808314 (or 40808312 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2122031444 is about 46065.5125229276. The cubic root of 2122031444 is about 1285.0418501917.

Adding to 2122031444 its reverse (4441302212), we get a palindrome (6563333656).

The spelling of 2122031444 in words is "two billion, one hundred twenty-two million, thirty-one thousand, four hundred forty-four".

Divisors: 1 2 4 13 26 52 40808297 81616594 163233188 530507861 1061015722 2122031444