Search a number
-
+
4931490049 = 29170051381
BaseRepresentation
bin1001001011111000…
…01001000100000001
3110201200110122120121
410211330021010001
540044430140144
62133202540241
7233130655003
oct44574110401
913650418517
104931490049
112100774512
12b57667681
136078c2365
1434ad4a373
151dce22384
hex125f09101

4931490049 has 4 divisors (see below), whose sum is σ = 5101541460. Its totient is φ = 4761438640.

The previous prime is 4931490041. The next prime is 4931490061. The reversal of 4931490049 is 9400941394.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 903303025 + 4028187024 = 30055^2 + 63468^2 .

It is a cyclic number.

It is not a de Polignac number, because 4931490049 - 23 = 4931490041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4931489987 and 4931490014.

It is not an unprimeable number, because it can be changed into a prime (4931490041) 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, 85025662 + ... + 85025719.

It is an arithmetic number, because the mean of its divisors is an integer number (1275385365).

Almost surely, 24931490049 is an apocalyptic number.

It is an amenable number.

4931490049 is a deficient number, since it is larger than the sum of its proper divisors (170051411).

4931490049 is a wasteful number, since it uses less digits than its factorization.

4931490049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170051410.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 4931490049 is about 70224.5686992807. The cubic root of 4931490049 is about 1702.1299771215.

The spelling of 4931490049 in words is "four billion, nine hundred thirty-one million, four hundred ninety thousand, forty-nine".

Divisors: 1 29 170051381 4931490049