Search a number
-
+
968999893 = 47592231567
BaseRepresentation
bin111001110000011…
…100001111010101
32111112100021221221
4321300130033111
53441030444033
6240053010341
733004235401
oct7160341725
92445307857
10968999893
11457a7aa64
122306239b1
131259a4c24
149299c101
155a10b12d
hex39c1c3d5

968999893 has 16 divisors (see below), whose sum is σ = 1011548160. Its totient is φ = 927535536.

The previous prime is 968999887. The next prime is 968999909. The reversal of 968999893 is 398999869.

It is a cyclic number.

It is not a de Polignac number, because 968999893 - 25 = 968999861 is a prime.

It is a super-2 number, since 2×9689998932 = 1877921585268022898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (968999803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 617596 + ... + 619162.

It is an arithmetic number, because the mean of its divisors is an integer number (63221760).

Almost surely, 2968999893 is an apocalyptic number.

It is an amenable number.

968999893 is a deficient number, since it is larger than the sum of its proper divisors (42548267).

968999893 is a wasteful number, since it uses less digits than its factorization.

968999893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1896.

The product of its digits is 68024448, while the sum is 70.

The square root of 968999893 is about 31128.7631138791. The cubic root of 968999893 is about 989.5579746246.

The spelling of 968999893 in words is "nine hundred sixty-eight million, nine hundred ninety-nine thousand, eight hundred ninety-three".

Divisors: 1 47 59 223 1567 2773 10481 13157 73649 92453 349441 618379 4345291 16423727 20617019 968999893