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28904743319 = 436071107419
BaseRepresentation
bin11010111010110110…
…110110000110010111
32202121102101002122212
4122322312312012113
5433144103241234
621140104544035
72042200156454
oct327266660627
982542332585
1028904743319
1111292a79521
12572818201b
1329584b541a
141582bc282b
15b428cd5ce
hex6badb6197

28904743319 has 8 divisors (see below), whose sum is σ = 29625699840. Its totient is φ = 28186002936.

The previous prime is 28904743297. The next prime is 28904743337. The reversal of 28904743319 is 91334740982.

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 28904743319 - 212 = 28904739223 is a prime.

It is a super-2 number, since 2×289047433192 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28904743349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527609 + ... + 579810.

It is an arithmetic number, because the mean of its divisors is an integer number (3703212480).

Almost surely, 228904743319 is an apocalyptic number.

28904743319 is a deficient number, since it is larger than the sum of its proper divisors (720956521).

28904743319 is a wasteful number, since it uses less digits than its factorization.

28904743319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108069.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 28904743319 in words is "twenty-eight billion, nine hundred four million, seven hundred forty-three thousand, three hundred nineteen".

Divisors: 1 43 607 26101 1107419 47619017 672203333 28904743319