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28433164740 = 22351291367069
BaseRepresentation
bin11010011110101111…
…111010100111000100
32201101120000102110120
4122132233322213010
5431212342232430
621021221221540
72024412625011
oct323657724704
981346012416
1028433164740
1111070864562
1256162618b0
1328b18a1946
14153a308708
15b162cb610
hex69ebfa9c4

28433164740 has 48 divisors (see below), whose sum is σ = 79674745920. Its totient is φ = 7576283520.

The previous prime is 28433164733. The next prime is 28433164769. The reversal of 28433164740 is 4746133482.

It is a super-4 number, since 4×284331647404 (a number of 43 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28433164692 and 28433164701.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106075 + ... + 260994.

It is an arithmetic number, because the mean of its divisors is an integer number (1659890540).

Almost surely, 228433164740 is an apocalyptic number.

28433164740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28433164740 is an abundant number, since it is smaller than the sum of its proper divisors (51241581180).

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

28433164740 is a wasteful number, since it uses less digits than its factorization.

28433164740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368372 (or 368370 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 42.

The spelling of 28433164740 in words is "twenty-eight billion, four hundred thirty-three million, one hundred sixty-four thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1291 2582 3873 5164 6455 7746 12910 15492 19365 25820 38730 77460 367069 734138 1101207 1468276 1835345 2202414 3670690 4404828 5506035 7341380 11012070 22024140 473886079 947772158 1421658237 1895544316 2369430395 2843316474 4738860790 5686632948 7108291185 9477721580 14216582370 28433164740