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2119399151 = 11171897403
BaseRepresentation
bin111111001010011…
…0111011011101111
312110201000122001212
41332110313123233
513320031233101
6550150025035
7103343411162
oct17624673357
95421018055
102119399151
11998388a51
124b194817b
1327a12094c
14161699ad9
15c60ea1bb
hex7e5376ef

2119399151 has 4 divisors (see below), whose sum is σ = 2121297672. Its totient is φ = 2117500632.

The previous prime is 2119399133. The next prime is 2119399211. The reversal of 2119399151 is 1519939112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2119399151 is a prime.

It is a super-2 number, since 2×21193991512 = 8983705522519041602, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2119399099 and 2119399108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2119392151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 947585 + ... + 949818.

It is an arithmetic number, because the mean of its divisors is an integer number (530324418).

Almost surely, 22119399151 is an apocalyptic number.

2119399151 is a deficient number, since it is larger than the sum of its proper divisors (1898521).

2119399151 is a wasteful number, since it uses less digits than its factorization.

2119399151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898520.

The product of its digits is 21870, while the sum is 41.

The square root of 2119399151 is about 46036.9324673137. The cubic root of 2119399151 is about 1284.5102830931.

The spelling of 2119399151 in words is "two billion, one hundred nineteen million, three hundred ninety-nine thousand, one hundred fifty-one".

Divisors: 1 1117 1897403 2119399151