Search a number
-
+
9128948399 = 13121812939
BaseRepresentation
bin10001000000010000…
…01011001010101111
3212120012201121221222
420200020023022233
5122144002322044
64105505013555
7442136531624
oct104010131257
925505647858
109128948399
11396506505a
1219293242bb
13b263bb21c
146285c034b
1538669d8ee
hex22020b2af

9128948399 has 12 divisors (see below), whose sum is σ = 9253138440. Its totient is φ = 9006145200.

The previous prime is 9128948383. The next prime is 9128948407. The reversal of 9128948399 is 9938498219.

It is not a de Polignac number, because 9128948399 - 24 = 9128948383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9128948299) 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 11 ways as a sum of consecutive naturals, for example, 3104672 + ... + 3107610.

It is an arithmetic number, because the mean of its divisors is an integer number (771094870).

Almost surely, 29128948399 is an apocalyptic number.

9128948399 is a deficient number, since it is larger than the sum of its proper divisors (124190041).

9128948399 is a wasteful number, since it uses less digits than its factorization.

9128948399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3382 (or 3251 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 62.

The square root of 9128948399 is about 95545.5305024782. The cubic root of 9128948399 is about 2089.9709556184.

The spelling of 9128948399 in words is "nine billion, one hundred twenty-eight million, nine hundred forty-eight thousand, three hundred ninety-nine".

Divisors: 1 131 181 2939 17161 23711 385009 531959 3106141 50436179 69686629 9128948399