Search a number
-
+
18845352541168 = 243753600629543
BaseRepresentation
bin1000100100011110001101…
…00010110011101111110000
32110201121011000120012022021
410102033012202303233300
54432230240222304133
6104025234015521224
73653350255403626
oct422170642635760
973647130505267
1018845352541168
1160062a623742a
122144432529214
13a69155972c0a
14492197131516
1522a326a2552d
hex1123c68b3bf0

18845352541168 has 40 divisors (see below), whose sum is σ = 38207246552928. Its totient is φ = 8995028020992.

The previous prime is 18845352541153. The next prime is 18845352541201. The reversal of 18845352541168 is 86114525354881.

It is a Smith number, since the sum of its digits (61) 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 7 ways as a sum of consecutive naturals, for example, 300283396 + ... + 300346147.

Almost surely, 218845352541168 is an apocalyptic number.

It is an amenable number.

18845352541168 is an abundant number, since it is smaller than the sum of its proper divisors (19361894011760).

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

18845352541168 is a wasteful number, since it uses less digits than its factorization.

18845352541168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600629641 (or 600629635 counting only the distinct ones).

The product of its digits is 36864000, while the sum is 61.

The spelling of 18845352541168 in words is "eighteen trillion, eight hundred forty-five billion, three hundred fifty-two million, five hundred forty-one thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 16 37 53 74 106 148 212 296 424 592 848 1961 3922 7844 15688 31376 600629543 1201259086 2402518172 4805036344 9610072688 22223293091 31833365779 44446586182 63666731558 88893172364 127333463116 177786344728 254666926232 355572689456 509333852464 1177834533823 2355669067646 4711338135292 9422676270584 18845352541168