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93391091361 = 32148126472
BaseRepresentation
bin101011011111010001…
…0101111011010100001
322221001120210222221200
41112332202233122201
53012231104410421
6110523035111413
76514214115201
oct1267642573241
9287046728850
1093391091361
1136674922237
12161245a2569
138a64549209
14473d42a401
152668e24726
hex15be8af6a1

93391091361 has 18 divisors (see below), whose sum is σ = 135040345362. Its totient is φ = 62195182560.

The previous prime is 93391091351. The next prime is 93391091363. The reversal of 93391091361 is 16319019339.

It can be written as a sum of positive squares in only one way, i.e., 77247864225 + 16143227136 = 277935^2 + 127056^2 .

It is not a de Polignac number, because 93391091361 - 25 = 93391091329 is a prime.

It is a super-5 number, since 5×933910913615 (a number of 56 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (93391091363) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 35280540 + ... + 35283186.

It is an arithmetic number, because the mean of its divisors is an integer number (7502241409).

Almost surely, 293391091361 is an apocalyptic number.

It is an amenable number.

93391091361 is a deficient number, since it is larger than the sum of its proper divisors (41649254001).

93391091361 is an equidigital number, since it uses as much as digits as its factorization.

93391091361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6781 (or 4131 counting only the distinct ones).

The product of its (nonzero) digits is 118098, while the sum is 45.

The spelling of 93391091361 in words is "ninety-three billion, three hundred ninety-one million, ninety-one thousand, three hundred sixty-one".

Divisors: 1 3 9 1481 2647 4443 7941 13329 23823 3920207 7006609 11760621 21019827 35281863 63059481 10376787929 31130363787 93391091361