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28055851374 = 23277142911813
BaseRepresentation
bin11010001000010000…
…100101000101101110
32200102021000220211110
4122020100211011232
5424424244220444
620515542132450
72012151542025
oct321020450556
980367026743
1028055851374
1110997884431
12552ba21126
1328516745b5
14150216b8bc
15ae30e9cb9
hex68842516e

28055851374 has 32 divisors (see below), whose sum is σ = 56358450720. Its totient is φ = 9310879872.

The previous prime is 28055851331. The next prime is 28055851381. The reversal of 28055851374 is 47315855082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2369092 + ... + 2380904.

It is an arithmetic number, because the mean of its divisors is an integer number (1761201585).

Almost surely, 228055851374 is an apocalyptic number.

28055851374 is an abundant number, since it is smaller than the sum of its proper divisors (28302599346).

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

28055851374 is a wasteful number, since it uses less digits than its factorization.

28055851374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13524.

The product of its (nonzero) digits is 1344000, while the sum is 48.

The spelling of 28055851374 in words is "twenty-eight billion, fifty-five million, eight hundred fifty-one thousand, three hundred seventy-four".

Divisors: 1 2 3 6 277 554 831 1429 1662 2858 4287 8574 11813 23626 35439 70878 395833 791666 1187499 2374998 3272201 6544402 9816603 16880777 19633206 33761554 50642331 101284662 4675975229 9351950458 14027925687 28055851374