Search a number
-
+
2857795488877 = 74147892079239
BaseRepresentation
bin101001100101100001111…
…000101000110001101101
3101010012110200101121221211
4221211201320220301231
5333310231121121002
610024504135154421
7413316556566460
oct51454170506155
911105420347854
102857795488877
11a01a9106181a
123a1a39b15a11
1317964831a174
149c4649b52d7
154e510213dd7
hex29961e28c6d

2857795488877 has 16 divisors (see below), whose sum is σ = 3346412025600. Its totient is φ = 2389293970560.

The previous prime is 2857795488851. The next prime is 2857795488907. The reversal of 2857795488877 is 7788845977582.

It is a de Polignac number, because none of the positive numbers 2k-2857795488877 is a prime.

It is a super-2 number, since 2×28577954888772 (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2857795488794 and 2857795488803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2857795488827) 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, 334824 + ... + 2414062.

It is an arithmetic number, because the mean of its divisors is an integer number (209150751600).

Almost surely, 22857795488877 is an apocalyptic number.

It is an amenable number.

2857795488877 is a deficient number, since it is larger than the sum of its proper divisors (488616536723).

2857795488877 is a wasteful number, since it uses less digits than its factorization.

2857795488877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084076.

The product of its digits is 17702092800, while the sum is 85.

The spelling of 2857795488877 in words is "two trillion, eight hundred fifty-seven billion, seven hundred ninety-five million, four hundred eighty-eight thousand, eight hundred seventy-seven".

Divisors: 1 7 41 287 4789 33523 196349 1374443 2079239 14554673 85248799 596741593 9957475571 69702328997 408256498411 2857795488877