Search a number
-
+
387982832885 = 5421391841443
BaseRepresentation
bin1011010010101011001…
…01000011010011110101
31101002110012011000210022
411221111211003103311
522324042101123020
6454123054334525
740013401444244
oct5512545032365
91332405130708
10387982832885
1113a5a721592a
126323a7ba445
132a781a7597b
1414ac819695b
15a15b8d6625
hex5a559434f5

387982832885 has 8 divisors (see below), whose sum is σ = 465590700960. Its totient is φ = 310378731984.

The previous prime is 387982832857. The next prime is 387982832893. The reversal of 387982832885 is 588238289783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 387982832885 - 218 = 387982570741 is a prime.

It is a super-2 number, since 2×3879828328852 (a number of 24 digits) contains 22 as substring.

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, 710027 + ... + 1131416.

It is an arithmetic number, because the mean of its divisors is an integer number (58198837620).

Almost surely, 2387982832885 is an apocalyptic number.

It is an amenable number.

387982832885 is a deficient number, since it is larger than the sum of its proper divisors (77607868075).

387982832885 is a wasteful number, since it uses less digits than its factorization.

387982832885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883587.

The product of its digits is 371589120, while the sum is 71.

The spelling of 387982832885 in words is "three hundred eighty-seven billion, nine hundred eighty-two million, eight hundred thirty-two thousand, eight hundred eighty-five".

Divisors: 1 5 42139 210695 1841443 9207215 77596566577 387982832885