Search a number
-
+
2830191272 = 233715760901
BaseRepresentation
bin1010100010110001…
…0100101010101000
321022020111121112222
42220230110222220
521244012110042
61144500453212
7130064141336
oct25054245250
97266447488
102830191272
111222629657
1266b9aa208
1336146b2bc
141cbc42b56
151187002d2
hexa8b14aa8

2830191272 has 32 divisors (see below), whose sum is σ = 5484834120. Its totient is φ = 1368057600.

The previous prime is 2830191271. The next prime is 2830191313. The reversal of 2830191272 is 2721910382.

It can be written as a sum of positive squares in 4 ways, for example, as 1761816676 + 1068374596 = 41974^2 + 32686^2 .

It is a super-2 number, since 2×28301912722 = 16019965272209955968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2830191271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16022 + ... + 76922.

Almost surely, 22830191272 is an apocalyptic number.

It is an amenable number.

2830191272 is a deficient number, since it is larger than the sum of its proper divisors (2654642848).

2830191272 is a wasteful number, since it uses less digits than its factorization.

2830191272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61101 (or 61097 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 2830191272 is about 53199.5420281040. The cubic root of 2830191272 is about 1414.5075258069.

The spelling of 2830191272 in words is "two billion, eight hundred thirty million, one hundred ninety-one thousand, two hundred seventy-two".

Divisors: 1 2 4 8 37 74 148 157 296 314 628 1256 5809 11618 23236 46472 60901 121802 243604 487208 2253337 4506674 9013348 9561457 18026696 19122914 38245828 76491656 353773909 707547818 1415095636 2830191272