Search a number
-
+
389520064080 = 24345723373361
BaseRepresentation
bin1011010101100010011…
…01000111111001010000
31101020102022201110120000
411222301031013321100
522340214114022310
6454535410450000
740066445625660
oct5526115077120
91336368643500
10389520064080
11140215a15434
12635a9593900
132a9683a2424
1414bd23cc1a0
15a1eb8374c0
hex5ab1347e50

389520064080 has 400 divisors, whose sum is σ = 1613353953024. Its totient is φ = 85161922560.

The previous prime is 389520064061. The next prime is 389520064123. The reversal of 389520064080 is 80460025983.

389520064080 is a `hidden beast` number, since 3 + 8 + 9 + 520 + 0 + 6 + 40 + 80 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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

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 79 ways as a sum of consecutive naturals, for example, 856600 + ... + 1229960.

Almost surely, 2389520064080 is an apocalyptic number.

389520064080 is a gapful number since it is divisible by the number (30) 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 389520064080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (806676976512).

389520064080 is an abundant number, since it is smaller than the sum of its proper divisors (1223833888944).

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

389520064080 is a wasteful number, since it uses less digits than its factorization.

389520064080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373416 (or 373401 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 389520064080 in words is "three hundred eighty-nine billion, five hundred twenty million, sixty-four thousand, eighty".