Search a number
-
+
2790872137 = 28323094271
BaseRepresentation
bin1010011001011001…
…0101010001001001
321012111111222211201
42212112111101021
521203430402022
61140534024201
7126106010314
oct24626252111
97174458751
102790872137
1112024135a9
1265a7a8061
13356282641
141c692997b
15115035127
hexa6595449

2790872137 has 8 divisors (see below), whose sum is σ = 2802602880. Its totient is φ = 2779155120.

The previous prime is 2790872111. The next prime is 2790872179. The reversal of 2790872137 is 7312780972.

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 a de Polignac number, because none of the positive numbers 2k-2790872137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2790872197) 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, 651312 + ... + 655582.

It is an arithmetic number, because the mean of its divisors is an integer number (350325360).

Almost surely, 22790872137 is an apocalyptic number.

It is an amenable number.

2790872137 is a deficient number, since it is larger than the sum of its proper divisors (11730743).

2790872137 is a wasteful number, since it uses less digits than its factorization.

2790872137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6863.

The product of its (nonzero) digits is 296352, while the sum is 46.

The square root of 2790872137 is about 52828.7056154133. The cubic root of 2790872137 is about 1407.9264891526.

The spelling of 2790872137 in words is "two billion, seven hundred ninety million, eight hundred seventy-two thousand, one hundred thirty-seven".

Divisors: 1 283 2309 4271 653447 1208693 9861739 2790872137