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28799923712 = 2978035693
BaseRepresentation
bin11010110100100110…
…111111011000000000
32202100010010201012012
4122310212333120000
5432440240024322
621121442152052
72036455212110
oct326446773000
982303121165
1028799923712
1111239895a4a
1256b9052628
13293c874ca1
141572cd9040
15b385c5ae2
hex6b49bf600

28799923712 has 40 divisors (see below), whose sum is σ = 65764119696. Its totient is φ = 12342822912.

The previous prime is 28799923709. The next prime is 28799923741. The reversal of 28799923712 is 21732999782.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4014263 + ... + 4021430.

Almost surely, 228799923712 is an apocalyptic number.

It is an amenable number.

28799923712 is an abundant number, since it is smaller than the sum of its proper divisors (36964195984).

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

28799923712 is an frugal number, since it uses more digits than its factorization.

28799923712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8035718 (or 8035702 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 59.

The spelling of 28799923712 in words is "twenty-eight billion, seven hundred ninety-nine million, nine hundred twenty-three thousand, seven hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 448 512 896 1792 3584 8035693 16071386 32142772 56249851 64285544 112499702 128571088 224999404 257142176 449998808 514284352 899997616 1028568704 1799995232 2057137408 3599990464 4114274816 7199980928 14399961856 28799923712