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28360383845 = 58836423643
BaseRepresentation
bin11010011010011010…
…010001110101100101
32201012111001202211212
4122122122101311211
5431040224240340
621010101241205
72022540166553
oct323232216545
981174052755
1028360383845
1111033774162
1255b5a03205
13289c79b421
1415307a0bd3
15b0ec01a65
hex69a691d65

28360383845 has 8 divisors (see below), whose sum is σ = 34071007776. Its totient is φ = 22662608976.

The previous prime is 28360383833. The next prime is 28360383847. The reversal of 28360383845 is 54838306382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28360383845 is a prime.

It is a super-2 number, since 2×283603838452 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28360383793 and 28360383802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28360383847) 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, 3207407 + ... + 3216236.

It is an arithmetic number, because the mean of its divisors is an integer number (4258875972).

Almost surely, 228360383845 is an apocalyptic number.

It is an amenable number.

28360383845 is a deficient number, since it is larger than the sum of its proper divisors (5710623931).

28360383845 is an equidigital number, since it uses as much as digits as its factorization.

28360383845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6424531.

The product of its (nonzero) digits is 3317760, while the sum is 50.

The spelling of 28360383845 in words is "twenty-eight billion, three hundred sixty million, three hundred eighty-three thousand, eight hundred forty-five".

Divisors: 1 5 883 4415 6423643 32118215 5672076769 28360383845