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28346030805 = 3541181254647
BaseRepresentation
bin11010011001100011…
…100001101011010101
32201011111001120011210
4122121203201223111
5431023040441210
621004425452033
72022304200141
oct323143415325
981144046153
1028346030805
1111026660544
1255b1041019
1328998143c1
14152c906221
15b0d818e20
hex6998e1ad5

28346030805 has 32 divisors (see below), whose sum is σ = 46716703488. Its totient is φ = 14667609600.

The previous prime is 28346030749. The next prime is 28346030807. The reversal of 28346030805 is 50803064382.

It is not a de Polignac number, because 28346030805 - 28 = 28346030549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28346030807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16009 + ... + 238638.

It is an arithmetic number, because the mean of its divisors is an integer number (1459896984).

Almost surely, 228346030805 is an apocalyptic number.

It is an amenable number.

28346030805 is a deficient number, since it is larger than the sum of its proper divisors (18370672683).

28346030805 is a wasteful number, since it uses less digits than its factorization.

28346030805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254877.

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 28346030805 in words is "twenty-eight billion, three hundred forty-six million, thirty thousand, eight hundred five".

Divisors: 1 3 5 15 41 123 181 205 543 615 905 2715 7421 22263 37105 111315 254647 763941 1273235 3819705 10440527 31321581 46091107 52202635 138273321 156607905 230455535 691366605 1889735387 5669206161 9448676935 28346030805