Search a number
-
+
57861470020 = 2259672991803
BaseRepresentation
bin110101111000110011…
…111111011101000100
312112100110120020010011
4311320303333131010
51422000014020040
642325312040004
74115601244264
oct657063773504
9175313506104
1057861470020
11225a2322912
12b269833004
1355c169b933
142b2c8577a4
151789b293ea
hexd78cff744

57861470020 has 24 divisors (see below), whose sum is σ = 121634783424. Its totient is φ = 23120645856.

The previous prime is 57861469973. The next prime is 57861470063. The reversal of 57861470020 is 2007416875.

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, 1476562 + ... + 1515241.

It is an arithmetic number, because the mean of its divisors is an integer number (5068115976).

Almost surely, 257861470020 is an apocalyptic number.

It is an amenable number.

57861470020 is an abundant number, since it is smaller than the sum of its proper divisors (63773313404).

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

57861470020 is a wasteful number, since it uses less digits than its factorization.

57861470020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992779 (or 2992777 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

Adding to 57861470020 its reverse (2007416875), we get a palindrome (59868886895).

The spelling of 57861470020 in words is "fifty-seven billion, eight hundred sixty-one million, four hundred seventy thousand, twenty".

Divisors: 1 2 4 5 10 20 967 1934 3868 4835 9670 19340 2991803 5983606 11967212 14959015 29918030 59836060 2893073501 5786147002 11572294004 14465367505 28930735010 57861470020