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115481827993 = 7197511156171
BaseRepresentation
bin110101110001101000…
…0001101101010011001
3102001002010102200200111
41223203100031222121
53343001321443433
6125015052204321
711225514225160
oct1534320155231
9361063380614
10115481827993
1144a80532674
121a46a7696a1
13ab7511a4cc
14583726a3d7
15300d4c7dcd
hex1ae340da99

115481827993 has 16 divisors (see below), whose sum is σ = 139110615040. Its totient is φ = 93649770000.

The previous prime is 115481827961. The next prime is 115481828003. The reversal of 115481827993 is 399728184511.

It is a cyclic number.

It is not a de Polignac number, because 115481827993 - 25 = 115481827961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115481827793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478203 + ... + 677968.

It is an arithmetic number, because the mean of its divisors is an integer number (8694413440).

Almost surely, 2115481827993 is an apocalyptic number.

It is an amenable number.

115481827993 is a deficient number, since it is larger than the sum of its proper divisors (23628787047).

115481827993 is a wasteful number, since it uses less digits than its factorization.

115481827993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156948.

The product of its digits is 4354560, while the sum is 58.

It can be divided in two parts, 1154818 and 27993, that added together give a palindrome (1182811).

The spelling of 115481827993 in words is "one hundred fifteen billion, four hundred eighty-one million, eight hundred twenty-seven thousand, nine hundred ninety-three".

Divisors: 1 7 19 133 751 5257 14269 99883 1156171 8093197 21967249 153770743 868284421 6077990947 16497403999 115481827993