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2097518129 = 71937342281
BaseRepresentation
bin111110100000101…
…1001011000110001
312102011211221221122
41331001121120301
513243431040004
6544045032025
7102656416130
oct17501313061
95364757848
102097518129
11986aa3463
124a6555615
1327572c2b5
1415c801917
15c4226cbe
hex7d059631

2097518129 has 16 divisors (see below), whose sum is σ = 2530154880. Its totient is φ = 1698641280.

The previous prime is 2097518081. The next prime is 2097518141. The reversal of 2097518129 is 9218157902.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-2097518129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2097518129.

It is not an unprimeable number, because it can be changed into a prime (2097518729) 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, 28469 + ... + 70749.

It is an arithmetic number, because the mean of its divisors is an integer number (158134680).

Almost surely, 22097518129 is an apocalyptic number.

It is an amenable number.

2097518129 is a deficient number, since it is larger than the sum of its proper divisors (432636751).

2097518129 is a wasteful number, since it uses less digits than its factorization.

2097518129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42680.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 2097518129 is about 45798.6695112424. The cubic root of 2097518129 is about 1280.0744848013.

The spelling of 2097518129 in words is "two billion, ninety-seven million, five hundred eighteen thousand, one hundred twenty-nine".

Divisors: 1 7 19 133 373 2611 7087 42281 49609 295967 803339 5623373 15770813 110395691 299645447 2097518129