Search a number
-
+
10111711988 = 227446380917
BaseRepresentation
bin10010110101011010…
…00111101011110100
3222002200222012011102
421122231013223310
5131202044240423
64351213025232
7505402063610
oct113255075364
928080865142
1010111711988
114319885974
121b62485218
13c51ba1b41
146bcd22340
153e2ac7c28
hex25ab47af4

10111711988 has 24 divisors (see below), whose sum is σ = 20228205312. Its totient is φ = 4332566304.

The previous prime is 10111711963. The next prime is 10111711993. The reversal of 10111711988 is 88911711101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84506 + ... + 165422.

It is an arithmetic number, because the mean of its divisors is an integer number (842841888).

Almost surely, 210111711988 is an apocalyptic number.

It is an amenable number.

10111711988 is an abundant number, since it is smaller than the sum of its proper divisors (10116493324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10111711988 is a wasteful number, since it uses less digits than its factorization.

10111711988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85391 (or 85389 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 38.

The spelling of 10111711988 in words is "ten billion, one hundred eleven million, seven hundred eleven thousand, nine hundred eighty-eight".

Divisors: 1 2 4 7 14 28 4463 8926 17852 31241 62482 80917 124964 161834 323668 566419 1132838 2265676 361132571 722265142 1444530284 2527927997 5055855994 10111711988