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2056179943 = 19790113697
BaseRepresentation
bin111101010001110…
…1101000011100111
312022022001202121201
41322203231003213
513202340224233
6540011023331
7101645145466
oct17243550347
95268052551
102056179943
11965729474
1249473ab47
13269cb762c
141571209dd
15c07ad77d
hex7a8ed0e7

2056179943 has 8 divisors (see below), whose sum is σ = 2164831920. Its totient is φ = 1947571200.

The previous prime is 2056179919. The next prime is 2056179949. The reversal of 2056179943 is 3499716502.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2056179943 - 225 = 2022625511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2056179893 and 2056179902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056179949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143271 + ... + 156967.

It is an arithmetic number, because the mean of its divisors is an integer number (270603990).

Almost surely, 22056179943 is an apocalyptic number.

2056179943 is a deficient number, since it is larger than the sum of its proper divisors (108651977).

2056179943 is a wasteful number, since it uses less digits than its factorization.

2056179943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21617.

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 2056179943 is about 45345.1203879756. The cubic root of 2056179943 is about 1271.6093312529.

The spelling of 2056179943 in words is "two billion, fifty-six million, one hundred seventy-nine thousand, nine hundred forty-three".

Divisors: 1 19 7901 13697 150119 260243 108219997 2056179943