Search a number
-
+
6299106457 = 72128553193
BaseRepresentation
bin1011101110111010…
…01011110010011001
3121020222212202121011
411313131023302121
5100400032401312
62521015413521
7312045343600
oct56735136231
917228782534
106299106457
112742754a06
1212796842a1
13795042c37
1443a82ca37
1526d01bda7
hex17774bc99

6299106457 has 6 divisors (see below), whose sum is σ = 7327532058. Its totient is φ = 5399234064.

The previous prime is 6299106431. The next prime is 6299106479. The reversal of 6299106457 is 7546019926.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4300211776 + 1998894681 = 65576^2 + 44709^2 .

It is not a de Polignac number, because 6299106457 - 215 = 6299073689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 128553193 = 6299106457 / (6 + 2 + 9 + 9 + 1 + 0 + 6 + 4 + 5 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 6299106457.

It is not an unprimeable number, because it can be changed into a prime (6299106757) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64276548 + ... + 64276645.

It is an arithmetic number, because the mean of its divisors is an integer number (1221255343).

Almost surely, 26299106457 is an apocalyptic number.

It is an amenable number.

6299106457 is a deficient number, since it is larger than the sum of its proper divisors (1028425601).

6299106457 is a wasteful number, since it uses less digits than its factorization.

6299106457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128553207 (or 128553200 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 6299106457 is about 79366.9103405191. The cubic root of 6299106457 is about 1846.8274289783.

The spelling of 6299106457 in words is "six billion, two hundred ninety-nine million, one hundred six thousand, four hundred fifty-seven".

Divisors: 1 7 49 128553193 899872351 6299106457