Search a number
-
+
117862431 = 361644057
BaseRepresentation
bin1110000011001…
…11000000011111
322012210000212020
413001213000133
5220133044211
615410111223
72630546151
oct701470037
9265700766
10117862431
1160591875
123357b513
131b558cab
1411920ad1
15a532306
hex706701f

117862431 has 8 divisors (see below), whose sum is σ = 159726384. Its totient is φ = 77286720.

The previous prime is 117862399. The next prime is 117862517. The reversal of 117862431 is 134268711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117862431 - 25 = 117862399 is a prime.

It is a super-2 number, since 2×1178624312 = 27783105282459522, which contains 22 as substring.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 117862392 and 117862401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117862231) 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 7 ways as a sum of consecutive naturals, for example, 321846 + ... + 322211.

It is an arithmetic number, because the mean of its divisors is an integer number (19965798).

Almost surely, 2117862431 is an apocalyptic number.

117862431 is a deficient number, since it is larger than the sum of its proper divisors (41863953).

117862431 is an equidigital number, since it uses as much as digits as its factorization.

117862431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644121.

The product of its digits is 8064, while the sum is 33.

The square root of 117862431 is about 10856.4465180832. The cubic root of 117862431 is about 490.2961294819.

The spelling of 117862431 in words is "one hundred seventeen million, eight hundred sixty-two thousand, four hundred thirty-one".

Divisors: 1 3 61 183 644057 1932171 39287477 117862431