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115263231 = 3254915073
BaseRepresentation
bin1101101111011…
…00011011111111
322000212222102120
412313230123333
5214001410411
615234254023
72566502256
oct667543377
9260788376
10115263231
115a076a76
1232727313
131ab58bc5
141144579d
15a1bc106
hex6dec6ff

115263231 has 8 divisors (see below), whose sum is σ = 153754800. Its totient is φ = 76806912.

The previous prime is 115263227. The next prime is 115263241. The reversal of 115263231 is 132362511.

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

It is not a de Polignac number, because 115263231 - 22 = 115263227 is a prime.

It is a super-2 number, since 2×1152632312 = 26571224841118722, which contains 22 as substring.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115263241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111 + ... + 15183.

It is an arithmetic number, because the mean of its divisors is an integer number (19219350).

Almost surely, 2115263231 is an apocalyptic number.

115263231 is a deficient number, since it is larger than the sum of its proper divisors (38491569).

115263231 is a wasteful number, since it uses less digits than its factorization.

115263231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17625.

The product of its digits is 1080, while the sum is 24.

The square root of 115263231 is about 10736.0714882121. The cubic root of 115263231 is about 486.6651673710.

The spelling of 115263231 in words is "one hundred fifteen million, two hundred sixty-three thousand, two hundred thirty-one".

Divisors: 1 3 2549 7647 15073 45219 38421077 115263231