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28042719546 = 2317274928623
BaseRepresentation
bin11010000111011110…
…011111000100111010
32200101100022202100110
4122013132133010322
5424412414011141
620514352445150
72011632116562
oct320736370472
980340282313
1028042719546
1110990425286
1255275497b6
13284ba2739a
14150050dda2
15ae1da3e16
hex68779f13a

28042719546 has 16 divisors (see below), whose sum is σ = 59384582784. Its totient is φ = 8797715904.

The previous prime is 28042719521. The next prime is 28042719577. The reversal of 28042719546 is 64591724082.

It is a super-2 number, since 2×280427195462 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28042719495 and 28042719504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137464210 + ... + 137464413.

It is an arithmetic number, because the mean of its divisors is an integer number (3711536424).

Almost surely, 228042719546 is an apocalyptic number.

28042719546 is an abundant number, since it is smaller than the sum of its proper divisors (31341863238).

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

28042719546 is a wasteful number, since it uses less digits than its factorization.

28042719546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274928645.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 28042719546 in words is "twenty-eight billion, forty-two million, seven hundred nineteen thousand, five hundred forty-six".

Divisors: 1 2 3 6 17 34 51 102 274928623 549857246 824785869 1649571738 4673786591 9347573182 14021359773 28042719546