Search a number
-
+
1992378060 = 223453197409
BaseRepresentation
bin111011011000001…
…0100011011001100
312010212000021220000
41312300110123030
513040022044220
6525411324300
7100241635251
oct16660243314
95125007800
101992378060
11932711142
124772b0690
13259a0903a
1414c873428
15b9da9390
hex76c146cc

1992378060 has 240 divisors, whose sum is σ = 6534232320. Its totient is φ = 507617280.

The previous prime is 1992377993. The next prime is 1992378071. The reversal of 1992378060 is 608732991.

1992378060 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 1992377997 and 1992378015.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4871136 + ... + 4871544.

It is an arithmetic number, because the mean of its divisors is an integer number (27225968).

Almost surely, 21992378060 is an apocalyptic number.

1992378060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1992378060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3267116160).

1992378060 is an abundant number, since it is smaller than the sum of its proper divisors (4541854260).

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

1992378060 is a wasteful number, since it uses less digits than its factorization.

1992378060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 1992378060 is about 44636.0623263298. The cubic root of 1992378060 is about 1258.3185053099.

The spelling of 1992378060 in words is "one billion, nine hundred ninety-two million, three hundred seventy-eight thousand, sixty".