Search a number
-
+
2142052445 = 513172389947
BaseRepresentation
bin111111110101101…
…0010000001011101
312112021122112112202
41333223102001131
513341331134240
6552315341245
7104040100601
oct17753220135
95467575482
102142052445
119aa150785
124b9451825
13281a22970
141646b5501
15c80c2315
hex7fad205d

2142052445 has 64 divisors (see below), whose sum is σ = 3096092160. Its totient is φ = 1406558208.

The previous prime is 2142052441. The next prime is 2142052453. The reversal of 2142052445 is 5442502412.

It is a cyclic number.

It is not a de Polignac number, because 2142052445 - 22 = 2142052441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142052441) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2261462 + ... + 2262408.

It is an arithmetic number, because the mean of its divisors is an integer number (48376440).

Almost surely, 22142052445 is an apocalyptic number.

It is an amenable number.

2142052445 is a deficient number, since it is larger than the sum of its proper divisors (954039715).

2142052445 is a wasteful number, since it uses less digits than its factorization.

2142052445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094.

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 2142052445 is about 46282.3124422279. The cubic root of 2142052445 is about 1289.0705892835.

Adding to 2142052445 its reverse (5442502412), we get a palindrome (7584554857).

The spelling of 2142052445 in words is "two billion, one hundred forty-two million, fifty-two thousand, four hundred forty-five".

Divisors: 1 5 13 17 23 65 85 89 115 221 299 391 445 947 1105 1157 1495 1513 1955 2047 4735 5083 5785 7565 10235 12311 16099 19669 21781 25415 26611 34799 61555 80495 84283 98345 108905 133055 173995 209287 283153 370277 421415 452387 1046435 1095679 1415765 1432811 1851385 1938509 2261935 4813601 5478395 7164055 9692545 18626543 24068005 25200617 32954653 93132715 126003085 164773265 428410489 2142052445