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117231284 = 2273401477
BaseRepresentation
bin1101111110011…
…00111010110100
322011120222002102
412333030322310
5220002400114
615344401232
72622310112
oct677147264
9264528072
10117231284
11601a0665
1233316218
131b397931
14117d8ab2
15a45a2de
hex6fcceb4

117231284 has 12 divisors (see below), whose sum is σ = 207965604. Its totient is φ = 57812544.

The previous prime is 117231277. The next prime is 117231319. The reversal of 117231284 is 482132711.

It can be written as a sum of positive squares in 2 ways, for example, as 62884900 + 54346384 = 7930^2 + 7372^2 .

It is a super-3 number, since 3×1172312843 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 200447 + ... + 201030.

It is an arithmetic number, because the mean of its divisors is an integer number (17330467).

Almost surely, 2117231284 is an apocalyptic number.

It is an amenable number.

117231284 is a deficient number, since it is larger than the sum of its proper divisors (90734320).

117231284 is a wasteful number, since it uses less digits than its factorization.

117231284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401554 (or 401552 counting only the distinct ones).

The product of its digits is 2688, while the sum is 29.

The square root of 117231284 is about 10827.3396547813. The cubic root of 117231284 is about 489.4193928250.

Adding to 117231284 its reverse (482132711), we get a palindrome (599363995).

The spelling of 117231284 in words is "one hundred seventeen million, two hundred thirty-one thousand, two hundred eighty-four".

Divisors: 1 2 4 73 146 292 401477 802954 1605908 29307821 58615642 117231284