Search a number
-
+
1128902975 = 52319715017
BaseRepresentation
bin100001101001001…
…1011000100111111
32220200020012202022
41003102123010333
54302444343400
6304004150355
736655342214
oct10322330477
92820205668
101128902975
1152a266572
122760983bb
1314cb60535
14a9d03b0b
1569194b85
hex4349b13f

1128902975 has 24 divisors (see below), whose sum is σ = 1459989888. Its totient is φ = 864921600.

The previous prime is 1128902963. The next prime is 1128903019. The reversal of 1128902975 is 5792098211.

It is a happy number.

It is not a de Polignac number, because 1128902975 - 24 = 1128902959 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67667 + ... + 82683.

It is an arithmetic number, because the mean of its divisors is an integer number (60832912).

Almost surely, 21128902975 is an apocalyptic number.

1128902975 is a deficient number, since it is larger than the sum of its proper divisors (331086913).

1128902975 is a wasteful number, since it uses less digits than its factorization.

1128902975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15155 (or 15150 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 1128902975 is about 33599.1514029745. The cubic root of 1128902975 is about 1041.2432662906.

The spelling of 1128902975 in words is "one billion, one hundred twenty-eight million, nine hundred two thousand, nine hundred seventy-five".

Divisors: 1 5 25 31 97 155 485 775 2425 3007 15017 15035 75085 75175 375425 465527 1456649 2327635 7283245 11638175 36416225 45156119 225780595 1128902975