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2158080715 = 57411738693
BaseRepresentation
bin1000000010100001…
…1011001011001011
312120101210212012101
42000220123023023
513404432040330
6554051054231
7104323245340
oct20050331313
95511725171
102158080715
11a081a8a8a
125028a1377
1328514534b
141668887c7
15c96db4ca
hex80a1b2cb

2158080715 has 32 divisors (see below), whose sum is σ = 3049716096. Its totient is φ = 1435223040.

The previous prime is 2158080671. The next prime is 2158080719. The reversal of 2158080715 is 5170808512.

It is not a de Polignac number, because 2158080715 - 227 = 2023862987 is a prime.

It is a super-2 number, since 2×21580807152 = 9314624744909822450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2158080719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 243909 + ... + 252601.

It is an arithmetic number, because the mean of its divisors is an integer number (95303628).

Almost surely, 22158080715 is an apocalyptic number.

2158080715 is a deficient number, since it is larger than the sum of its proper divisors (891635381).

2158080715 is a wasteful number, since it uses less digits than its factorization.

2158080715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8919.

The product of its (nonzero) digits is 22400, while the sum is 37.

The square root of 2158080715 is about 46455.1473466612. The cubic root of 2158080715 is about 1292.2778325830.

The spelling of 2158080715 in words is "two billion, one hundred fifty-eight million, eighty thousand, seven hundred fifteen".

Divisors: 1 5 7 35 41 173 205 287 865 1211 1435 6055 7093 8693 35465 43465 49651 60851 248255 304255 356413 1503889 1782065 2494891 7519445 10527223 12474455 52636115 61659449 308297245 431616143 2158080715