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115428451 = 1093105607
BaseRepresentation
bin1101110000101…
…00110001100011
322001012101001211
412320110301203
5214022202301
615242010551
72601061045
oct670246143
9261171054
10115428451
115a17a116
12327a6a57
131abb6178
1411489a95
15a201051
hex6e14c63

115428451 has 4 divisors (see below), whose sum is σ = 115535152. Its totient is φ = 115321752.

The previous prime is 115428449. The next prime is 115428457. The reversal of 115428451 is 154824511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154824511 = 313494647.

It is a cyclic number.

It is not a de Polignac number, because 115428451 - 21 = 115428449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115428457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51711 + ... + 53896.

It is an arithmetic number, because the mean of its divisors is an integer number (28883788).

Almost surely, 2115428451 is an apocalyptic number.

115428451 is a deficient number, since it is larger than the sum of its proper divisors (106701).

115428451 is a wasteful number, since it uses less digits than its factorization.

115428451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106700.

The product of its digits is 6400, while the sum is 31.

The square root of 115428451 is about 10743.7633536857. The cubic root of 115428451 is about 486.8975873429.

The spelling of 115428451 in words is "one hundred fifteen million, four hundred twenty-eight thousand, four hundred fifty-one".

Divisors: 1 1093 105607 115428451