Search a number
-
+
6408071982 = 23213103926357
BaseRepresentation
bin1011111011111001…
…10110101100101110
3121112120220210012100
411331330312230232
5101110431300412
62535511115530
7314540466414
oct57574665456
917476823170
106408071982
11279920a364
1212aa072ba6
137b17a5490
1444b0b52b4
15277892edc
hex17df36b2e

6408071982 has 48 divisors (see below), whose sum is σ = 14967126720. Its totient is φ = 1969742016.

The previous prime is 6408071977. The next prime is 6408071983. The reversal of 6408071982 is 2891708046.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (6408071983) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 229948 + ... + 256304.

It is an arithmetic number, because the mean of its divisors is an integer number (311815140).

Almost surely, 26408071982 is an apocalyptic number.

6408071982 is an abundant number, since it is smaller than the sum of its proper divisors (8559054738).

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

6408071982 is a wasteful number, since it uses less digits than its factorization.

6408071982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27417 (or 27414 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 6408071982 is about 80050.4339900790. The cubic root of 6408071982 is about 1857.4157642973.

The spelling of 6408071982 in words is "six billion, four hundred eight million, seventy-one thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 1039 2078 3117 6234 9351 13507 18702 26357 27014 40521 52714 79071 81042 121563 158142 237213 243126 342641 474426 685282 1027923 2055846 3083769 6167538 27384923 54769846 82154769 164309538 246464307 356003999 492928614 712007998 1068011997 2136023994 3204035991 6408071982