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6998628050 = 252118312
BaseRepresentation
bin1101000010010011…
…01001011011010010
3200001202011010211022
412201021221123102
5103313122044200
63114244515442
7335301233261
oct64111513322
920052133738
106998628050
112a715a7927
1214339abb82
13876c4563b
144a56c05d8
152ae647885
hex1a12696d2

6998628050 has 18 divisors (see below), whose sum is σ = 13018548549. Its totient is φ = 2799214600.

The previous prime is 6998628037. The next prime is 6998628053. The reversal of 6998628050 is 508268996.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6858655489 + 139972561 = 82817^2 + 11831^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=59155.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6998627983 and 6998628001.

It is not an unprimeable number, because it can be changed into a prime (6998628053) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 585635 + ... + 597465.

Almost surely, 26998628050 is an apocalyptic number.

6998628050 is a deficient number, since it is larger than the sum of its proper divisors (6019920499).

6998628050 is an frugal number, since it uses more digits than its factorization.

6998628050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23674 (or 11838 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 53.

The square root of 6998628050 is about 83657.8032821804. The cubic root of 6998628050 is about 1912.8062009908.

The spelling of 6998628050 in words is "six billion, nine hundred ninety-eight million, six hundred twenty-eight thousand, fifty".

Divisors: 1 2 5 10 25 50 11831 23662 59155 118310 295775 591550 139972561 279945122 699862805 1399725610 3499314025 6998628050