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28747374404 = 2279671061729
BaseRepresentation
bin11010110001011110…
…100001111101000100
32202012110020221002112
4122301132201331010
5432333311440104
621112324000152
72035246436120
oct326136417504
982173227075
1028747374404
1111212163971
1256a3530058
132931a06418
141569d3a580
15b33b9586e
hex6b17a1f44

28747374404 has 24 divisors (see below), whose sum is σ = 57554259840. Its totient is φ = 12307550976.

The previous prime is 28747374379. The next prime is 28747374407. The reversal of 28747374404 is 40447374782.

It is not an unprimeable number, because it can be changed into a prime (28747374407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503789 + ... + 557940.

It is an arithmetic number, because the mean of its divisors is an integer number (2398094160).

Almost surely, 228747374404 is an apocalyptic number.

It is an amenable number.

28747374404 is an abundant number, since it is smaller than the sum of its proper divisors (28806885436).

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

28747374404 is a wasteful number, since it uses less digits than its factorization.

28747374404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062707 (or 1062705 counting only the distinct ones).

The product of its (nonzero) digits is 4214784, while the sum is 50.

The spelling of 28747374404 in words is "twenty-eight billion, seven hundred forty-seven million, three hundred seventy-four thousand, four hundred four".

Divisors: 1 2 4 7 14 28 967 1934 3868 6769 13538 27076 1061729 2123458 4246916 7432103 14864206 29728412 1026691943 2053383886 4106767772 7186843601 14373687202 28747374404