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28958076874 = 214479038437
BaseRepresentation
bin11010111110000010…
…010010111111001010
32202202010201201112201
4122332002102333022
5433301231424444
621145252030414
72043415410046
oct327602227712
982663651481
1028958076874
1111310096841
12574200240a
132966569c3c
141589d07026
15b47415dd4
hex6be092fca

28958076874 has 4 divisors (see below), whose sum is σ = 43437115314. Its totient is φ = 14479038436.

The previous prime is 28958076863. The next prime is 28958076937. The reversal of 28958076874 is 47867085982.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27763890625 + 1194186249 = 166625^2 + 34557^2 .

It is a super-3 number, since 3×289580768743 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7239519217 + ... + 7239519220.

Almost surely, 228958076874 is an apocalyptic number.

28958076874 is a deficient number, since it is larger than the sum of its proper divisors (14479038440).

28958076874 is a wasteful number, since it uses less digits than its factorization.

28958076874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14479038439.

The product of its (nonzero) digits is 54190080, while the sum is 64.

The spelling of 28958076874 in words is "twenty-eight billion, nine hundred fifty-eight million, seventy-six thousand, eight hundred seventy-four".

Divisors: 1 2 14479038437 28958076874