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115252830 = 232571116631
BaseRepresentation
bin1101101111010…
…01111001011110
322000212110011100
412313221321132
5214001042310
615234133530
72566430040
oct667517136
9260773140
10115252830
115a06a180
12327212a6
131ab54254
1411441a90
15a1b8ec0
hex6de9e5e

115252830 has 96 divisors (see below), whose sum is σ = 373621248. Its totient is φ = 23947200.

The previous prime is 115252829. The next prime is 115252831. The reversal of 115252830 is 38252511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (115252829) and next prime (115252831).

It is a junction number, because it is equal to n+sod(n) for n = 115252794 and 115252803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115252831) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1386 + ... + 15245.

It is an arithmetic number, because the mean of its divisors is an integer number (3891888).

Almost surely, 2115252830 is an apocalyptic number.

115252830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 115252830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186810624).

115252830 is an abundant number, since it is smaller than the sum of its proper divisors (258368418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115252830 is a wasteful number, since it uses less digits than its factorization.

115252830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16662 (or 16659 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 115252830 is about 10735.5870822233. The cubic root of 115252830 is about 486.6505285406.

The spelling of 115252830 in words is "one hundred fifteen million, two hundred fifty-two thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 7 9 10 11 14 15 18 21 22 30 33 35 42 45 55 63 66 70 77 90 99 105 110 126 154 165 198 210 231 315 330 385 462 495 630 693 770 990 1155 1386 2310 3465 6930 16631 33262 49893 83155 99786 116417 149679 166310 182941 232834 249465 299358 349251 365882 498930 548823 582085 698502 748395 914705 1047753 1097646 1164170 1280587 1496790 1646469 1746255 1829410 2095506 2561174 2744115 3292938 3492510 3841761 5238765 5488230 6402935 7683522 8232345 10477530 11525283 12805870 16464690 19208805 23050566 38417610 57626415 115252830