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28976039458 = 243649331921
BaseRepresentation
bin11010111111000110…
…110100011000100010
32202210101112022120121
4122333012310120202
5433320331230313
621151133030454
72044024162102
oct327706643042
982711468517
1028976039458
111131a245353
12574802542a
13296a1b8ba2
14158c461202
15b48cb328d
hex6bf1b4622

28976039458 has 8 divisors (see below), whose sum is σ = 43465185900. Its totient is φ = 14487644160.

The previous prime is 28976039399. The next prime is 28976039459. The reversal of 28976039458 is 85493067982.

It can be written as a sum of positive squares in 2 ways, for example, as 25934847849 + 3041191609 = 161043^2 + 55147^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×289760394582 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28976039396 and 28976039405.

It is not an unprimeable number, because it can be changed into a prime (28976039459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78663 + ... + 253258.

Almost surely, 228976039458 is an apocalyptic number.

28976039458 is a deficient number, since it is larger than the sum of its proper divisors (14489146442).

28976039458 is a wasteful number, since it uses less digits than its factorization.

28976039458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375572.

The product of its (nonzero) digits is 26127360, while the sum is 61.

The spelling of 28976039458 in words is "twenty-eight billion, nine hundred seventy-six million, thirty-nine thousand, four hundred fifty-eight".

Divisors: 1 2 43649 87298 331921 663842 14488019729 28976039458