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113478480 = 243253972
BaseRepresentation
bin1101100001110…
…00101101010000
321220112022012200
412300320231100
5213022302410
615132123200
72545360023
oct660705520
9256468180
10113478480
1159068075
1232006500
131a68273b
14110dd1ba
159e683c0
hex6c38b50

113478480 has 90 divisors (see below), whose sum is σ = 382060926. Its totient is φ = 30184704.

The previous prime is 113478467. The next prime is 113478487. The reversal of 113478480 is 84874311.

It can be written as a sum of positive squares in 3 ways, for example, as 25644096 + 87834384 = 5064^2 + 9372^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is a super-2 number, since 2×1134784802 = 25754730846220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113478487) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 285642 + ... + 286038.

Almost surely, 2113478480 is an apocalyptic number.

113478480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113478480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191030463).

113478480 is an abundant number, since it is smaller than the sum of its proper divisors (268582446).

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

113478480 is an equidigital number, since it uses as much as digits as its factorization.

113478480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 113478480 is about 10652.6278448090. The cubic root of 113478480 is about 484.1402275651.

The spelling of 113478480 in words is "one hundred thirteen million, four hundred seventy-eight thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 397 720 794 1191 1588 1985 2382 3176 3573 3970 4764 5955 6352 7146 7940 9528 11910 14292 15880 17865 19056 23820 28584 31760 35730 47640 57168 71460 95280 142920 157609 285840 315218 472827 630436 788045 945654 1260872 1418481 1576090 1891308 2364135 2521744 2836962 3152180 3782616 4728270 5673924 6304360 7092405 7565232 9456540 11347848 12608720 14184810 18913080 22695696 28369620 37826160 56739240 113478480