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115194397 = 1719379941
BaseRepresentation
bin1101101110110…
…11101000011101
322000202111000011
412313123220131
5213442210042
615233003221
72566064503
oct667335035
9260674004
10115194397
115a02a28a
12326b3511
131ab33786
1411428673
15a1a6a17
hex6ddba1d

115194397 has 16 divisors (see below), whose sum is σ = 128865600. Its totient is φ = 102332160.

The previous prime is 115194389. The next prime is 115194407. The reversal of 115194397 is 793491511.

It is a cyclic number.

It is not a de Polignac number, because 115194397 - 23 = 115194389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115194307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121947 + ... + 122887.

It is an arithmetic number, because the mean of its divisors is an integer number (8054100).

Almost surely, 2115194397 is an apocalyptic number.

115194397 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

115194397 is a deficient number, since it is larger than the sum of its proper divisors (13671203).

115194397 is a wasteful number, since it uses less digits than its factorization.

115194397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356.

The product of its digits is 34020, while the sum is 40.

The square root of 115194397 is about 10732.8652744735. The cubic root of 115194397 is about 486.5682709583.

The spelling of 115194397 in words is "one hundred fifteen million, one hundred ninety-four thousand, three hundred ninety-seven".

Divisors: 1 17 19 323 379 941 6443 7201 15997 17879 122417 303943 356639 6062863 6776141 115194397