Search a number
-
+
2681048842 = 22017664613
BaseRepresentation
bin1001111111001101…
…1000111100001010
320220211212101121021
42133303120330022
520442322030332
61122012103054
7123303352633
oct23763307412
96824771537
102681048842
11115642274a
12629a64a8a
133395ac844
141b60dc88a
1510a58ec97
hex9fcd8f0a

2681048842 has 8 divisors (see below), whose sum is σ = 4023573156. Its totient is φ = 1339857792.

The previous prime is 2681048837. The next prime is 2681048849. The reversal of 2681048842 is 2488401862.

It can be written as a sum of positive squares in 2 ways, for example, as 2643090921 + 37957921 = 51411^2 + 6161^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2681048849) 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, 328273 + ... + 336340.

Almost surely, 22681048842 is an apocalyptic number.

2681048842 is a deficient number, since it is larger than the sum of its proper divisors (1342524314).

2681048842 is a wasteful number, since it uses less digits than its factorization.

2681048842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666632.

The product of its (nonzero) digits is 196608, while the sum is 43.

The square root of 2681048842 is about 51778.8455066352. The cubic root of 2681048842 is about 1389.2110910715.

The spelling of 2681048842 in words is "two billion, six hundred eighty-one million, forty-eight thousand, eight hundred forty-two".

Divisors: 1 2 2017 4034 664613 1329226 1340524421 2681048842