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28392000544 = 25985190067
BaseRepresentation
bin11010011100010010…
…111000110000100000
32201021200120001210201
4122130102320300200
5431121323004134
621013151034544
72023403010535
oct323422706040
981250501721
1028392000544
111104a5a9266
12560450ba54
1328a61bb22b
141534a70d8c
15b12899914
hex69c4b8c20

28392000544 has 24 divisors (see below), whose sum is σ = 55903045968. Its totient is φ = 14194401600.

The previous prime is 28392000503. The next prime is 28392000629. The reversal of 28392000544 is 44500029382.

It is a happy number.

It is a super-2 number, since 2×283920005442 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270199 + ... + 360265.

It is an arithmetic number, because the mean of its divisors is an integer number (2329293582).

Almost surely, 228392000544 is an apocalyptic number.

28392000544 is the 90067-th nonagonal number.

It is an amenable number.

28392000544 is a deficient number, since it is larger than the sum of its proper divisors (27511045424).

28392000544 is an equidigital number, since it uses as much as digits as its factorization.

28392000544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99928 (or 99920 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 28392000544 in words is "twenty-eight billion, three hundred ninety-two million, five hundred forty-four", and thus it is an aban number.

Divisors: 1 2 4 8 16 32 9851 19702 39404 78808 90067 157616 180134 315232 360268 720536 1441072 2882144 887250017 1774500034 3549000068 7098000136 14196000272 28392000544