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2122245541 = 131746720563
BaseRepresentation
bin111111001111110…
…1110010110100101
312110220101020120201
41332133232112211
513321243324131
6550331030501
7103406534533
oct17637562645
95426336521
102122245541
11999a52539
124b289b431
1327a8a93c0
14161bdb153
15c64ad761
hex7e7ee5a5

2122245541 has 16 divisors (see below), whose sum is σ = 2425235904. Its totient is φ = 1839723264.

The previous prime is 2122245539. The next prime is 2122245547. The reversal of 2122245541 is 1455422212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2122245541 - 21 = 2122245539 is a prime.

It is a super-2 number, since 2×21222455412 = 9007852272588765362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122245547) 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, 92926 + ... + 113488.

It is an arithmetic number, because the mean of its divisors is an integer number (151577244).

Almost surely, 22122245541 is an apocalyptic number.

It is an amenable number.

2122245541 is a deficient number, since it is larger than the sum of its proper divisors (302990363).

2122245541 is a wasteful number, since it uses less digits than its factorization.

2122245541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21060.

The product of its digits is 6400, while the sum is 28.

The square root of 2122245541 is about 46067.8362960537. The cubic root of 2122245541 is about 1285.0850657550.

Adding to 2122245541 its reverse (1455422212), we get a palindrome (3577667753).

The spelling of 2122245541 in words is "two billion, one hundred twenty-two million, two hundred forty-five thousand, five hundred forty-one".

Divisors: 1 13 17 221 467 6071 7939 20563 103207 267319 349571 4544423 9602921 124837973 163249657 2122245541