Search a number
-
+
10978189145 = 571128514777
BaseRepresentation
bin10100011100101100…
…11101111101011001
31001100002101210100222
422032112131331121
5134440404023040
65013204405425
7536023032230
oct121626357531
931302353328
1010978189145
1147239a0aa0
1221646a6875
13105c55bc11
14762033b17
15443bd1bb5
hex28e59df59

10978189145 has 16 divisors (see below), whose sum is σ = 16424512128. Its totient is φ = 6843546240.

The previous prime is 10978189141. The next prime is 10978189147. The reversal of 10978189145 is 54198187901.

It is a happy number.

It is not a de Polignac number, because 10978189145 - 22 = 10978189141 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10978189141) 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, 14257004 + ... + 14257773.

It is an arithmetic number, because the mean of its divisors is an integer number (1026532008).

Almost surely, 210978189145 is an apocalyptic number.

It is an amenable number.

10978189145 is a deficient number, since it is larger than the sum of its proper divisors (5446322983).

10978189145 is a wasteful number, since it uses less digits than its factorization.

10978189145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28514800.

The product of its (nonzero) digits is 725760, while the sum is 53.

The spelling of 10978189145 in words is "ten billion, nine hundred seventy-eight million, one hundred eighty-nine thousand, one hundred forty-five".

Divisors: 1 5 7 11 35 55 77 385 28514777 142573885 199603439 313662547 998017195 1568312735 2195637829 10978189145