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28624002816 = 283191961623
BaseRepresentation
bin11010101010000111…
…111001111100000000
32201212212010000002110
4122222013321330000
5432110221042231
621052155415320
72032221003153
oct325207717400
981785100073
1028624002816
1111159559a82
12566a154540
13291229b996
1415577c3c9a
15b27e26046
hex6aa1f9f00

28624002816 has 72 divisors (see below), whose sum is σ = 80191189120. Its totient is φ = 9039154176.

The previous prime is 28624002809. The next prime is 28624002817. The reversal of 28624002816 is 61820042682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28624002817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 966220 + ... + 995403.

Almost surely, 228624002816 is an apocalyptic number.

It is an amenable number.

28624002816 is an abundant number, since it is smaller than the sum of its proper divisors (51567186304).

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

28624002816 is a wasteful number, since it uses less digits than its factorization.

28624002816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961661 (or 1961647 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The spelling of 28624002816 in words is "twenty-eight billion, six hundred twenty-four million, two thousand, eight hundred sixteen".

Divisors: 1 2 3 4 6 8 12 16 19 24 32 38 48 57 64 76 96 114 128 152 192 228 256 304 384 456 608 768 912 1216 1824 2432 3648 4864 7296 14592 1961623 3923246 5884869 7846492 11769738 15692984 23539476 31385968 37270837 47078952 62771936 74541674 94157904 111812511 125543872 149083348 188315808 223625022 251087744 298166696 376631616 447250044 502175488 596333392 753263232 894500088 1192666784 1506526464 1789000176 2385333568 3578000352 4770667136 7156000704 9541334272 14312001408 28624002816