Search a number
-
+
120981742092 = 22323360603947
BaseRepresentation
bin111000010101100010…
…0101110001000001100
3102120021102111021110200
41300223010232020030
53440232311221332
6131324522333500
711512016561151
oct1605304561014
9376242437420
10120981742092
1147343048522
121b54465a290
13b540701053
145bd98a0228
15323127c17c
hex1c2b12e20c

120981742092 has 18 divisors (see below), whose sum is σ = 305814959268. Its totient is φ = 40327247352.

The previous prime is 120981742069. The next prime is 120981742111. The reversal of 120981742092 is 290247189021.

120981742092 is a `hidden beast` number, since 1 + 209 + 8 + 17 + 420 + 9 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×1209817420923 (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1680301938 + ... + 1680302009.

Almost surely, 2120981742092 is an apocalyptic number.

120981742092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120981742092 is an abundant number, since it is smaller than the sum of its proper divisors (184833217176).

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

120981742092 is a wasteful number, since it uses less digits than its factorization.

120981742092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3360603957 (or 3360603952 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 120981742092 in words is "one hundred twenty billion, nine hundred eighty-one million, seven hundred forty-two thousand, ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 3360603947 6721207894 10081811841 13442415788 20163623682 30245435523 40327247364 60490871046 120981742092