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28107857374 = 226119538073
BaseRepresentation
bin11010001011010110…
…111101110111011110
32200112212220002122121
4122023112331313132
5430031102413444
620525040533154
72013352563022
oct321326756736
980485802577
1028107857374
1110a141752a3
1255453211ba
13285c382a8c
141509028382
15ae796e084
hex68b5bddde

28107857374 has 8 divisors (see below), whose sum is σ = 42163478640. Its totient is φ = 14053364496.

The previous prime is 28107857333. The next prime is 28107857381. The reversal of 28107857374 is 47375870182.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216799 + ... + 321274.

It is an arithmetic number, because the mean of its divisors is an integer number (5270434830).

Almost surely, 228107857374 is an apocalyptic number.

28107857374 is a deficient number, since it is larger than the sum of its proper divisors (14055621266).

28107857374 is a wasteful number, since it uses less digits than its factorization.

28107857374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564194.

The product of its (nonzero) digits is 2634240, while the sum is 52.

It can be divided in two parts, 28107 and 857374, that added together give a square (885481 = 9412).

The spelling of 28107857374 in words is "twenty-eight billion, one hundred seven million, eight hundred fifty-seven thousand, three hundred seventy-four".

Divisors: 1 2 26119 52238 538073 1076146 14053928687 28107857374