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115939001 = 534721683
BaseRepresentation
bin1101110100100…
…01011010111001
322002011022102002
412322101122321
5214140022001
615300550345
72605315403
oct672213271
9262138362
10115939001
115a498762
12329b23b5
131b034679
141157db73
15a2a246b
hex6e916b9

115939001 has 4 divisors (see below), whose sum is σ = 115966032. Its totient is φ = 115911972.

The previous prime is 115938983. The next prime is 115939003. The reversal of 115939001 is 100939511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100939511 = 712914159.

It is a cyclic number.

It is not a de Polignac number, because 115939001 - 26 = 115938937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115939003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5495 + ... + 16188.

It is an arithmetic number, because the mean of its divisors is an integer number (28991508).

Almost surely, 2115939001 is an apocalyptic number.

It is an amenable number.

115939001 is a deficient number, since it is larger than the sum of its proper divisors (27031).

115939001 is an equidigital number, since it uses as much as digits as its factorization.

115939001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27030.

The product of its (nonzero) digits is 1215, while the sum is 29.

The square root of 115939001 is about 10767.4974344088. The cubic root of 115939001 is about 487.6143948945.

The spelling of 115939001 in words is "one hundred fifteen million, nine hundred thirty-nine thousand, one".

Divisors: 1 5347 21683 115939001