Search a number
-
+
57983440879 = 713637180669
BaseRepresentation
bin110110000000000101…
…010001011111101111
312112122222001222200101
4312000011101133233
51422222230102004
642345350211531
74121612054410
oct660005213757
9175588058611
1057983440879
1122655160381
12b2a2653ba7
135610a35940
142b40b27807
1517956bdba4
hexd801517ef

57983440879 has 8 divisors (see below), whose sum is σ = 71364235040. Its totient is φ = 45877008096.

The previous prime is 57983440861. The next prime is 57983440883. The reversal of 57983440879 is 97804438975.

57983440879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 57983440879 - 211 = 57983438831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57983440879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57983440819) 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, 318590244 + ... + 318590425.

It is an arithmetic number, because the mean of its divisors is an integer number (8920529380).

Almost surely, 257983440879 is an apocalyptic number.

57983440879 is a deficient number, since it is larger than the sum of its proper divisors (13380794161).

57983440879 is a wasteful number, since it uses less digits than its factorization.

57983440879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637180689.

The product of its (nonzero) digits is 60963840, while the sum is 64.

The spelling of 57983440879 in words is "fifty-seven billion, nine hundred eighty-three million, four hundred forty thousand, eight hundred seventy-nine".

Divisors: 1 7 13 91 637180669 4460264683 8283348697 57983440879