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115123470 = 235711194361
BaseRepresentation
bin1101101110010…
…10010100001110
322000121212201020
412313022110032
5213432422340
615231255010
72565350640
oct667122416
9260555636
10115123470
1159a90a70
123267a466
131ab0a3c7
141140a890
15a1909d0
hex6dca50e

115123470 has 256 divisors, whose sum is σ = 377118720. Its totient is φ = 21772800.

The previous prime is 115123469. The next prime is 115123483. The reversal of 115123470 is 74321511.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 115123470.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1887240 + ... + 1887300.

It is an arithmetic number, because the mean of its divisors is an integer number (1473120).

Almost surely, 2115123470 is an apocalyptic number.

115123470 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 115123470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188559360).

115123470 is an abundant number, since it is smaller than the sum of its proper divisors (261995250).

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

115123470 is a wasteful number, since it uses less digits than its factorization.

115123470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 115123470 is about 10729.5605688211. The cubic root of 115123470 is about 486.4683878794.

Adding to 115123470 its reverse (74321511), we get a palindrome (189444981).

The spelling of 115123470 in words is "one hundred fifteen million, one hundred twenty-three thousand, four hundred seventy".