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6819903324 = 2233134857481
BaseRepresentation
bin1100101100111111…
…10111011101011100
3122121021211222121000
412112133313131130
5102431343401244
63044422110300
7331001136033
oct62637673534
918537758530
106819903324
11298a726343
1213a3b7b390
13848bca070
14489a7971a
1529dae2169
hex1967f775c

6819903324 has 48 divisors (see below), whose sum is σ = 19041329440. Its totient is φ = 2098431360.

The previous prime is 6819903323. The next prime is 6819903331. The reversal of 6819903324 is 4233099186.

It is a happy number.

It is a super-2 number, since 2×68199033242 = 93022162697412497952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6819903324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6819903323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2427337 + ... + 2430144.

Almost surely, 26819903324 is an apocalyptic number.

It is an amenable number.

6819903324 is an abundant number, since it is smaller than the sum of its proper divisors (12221426116).

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

6819903324 is a wasteful number, since it uses less digits than its factorization.

6819903324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4857507 (or 4857499 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 6819903324 is about 82582.7059619628. The cubic root of 6819903324 is about 1896.3830843460.

The spelling of 6819903324 in words is "six billion, eight hundred nineteen million, nine hundred three thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 13 18 26 27 36 39 52 54 78 108 117 156 234 351 468 702 1404 4857481 9714962 14572443 19429924 29144886 43717329 58289772 63147253 87434658 126294506 131151987 174869316 189441759 252589012 262303974 378883518 524607948 568325277 757767036 1136650554 1704975831 2273301108 3409951662 6819903324