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115413780 = 223516311801
BaseRepresentation
bin1101110000100…
…01001100010100
322001011121221110
412320101030110
5214021220110
615241415020
72601000216
oct670211424
9261147843
10115413780
115a16a099
123279a470
131abac5a1
14114845b6
15a1eba20
hex6e11314

115413780 has 48 divisors (see below), whose sum is σ = 325168704. Its totient is φ = 30585600.

The previous prime is 115413773. The next prime is 115413787. The reversal of 115413780 is 87314511.

It is an interprime number because it is at equal distance from previous prime (115413773) and next prime (115413787).

It is a super-2 number, since 2×1154137802 = 26640681227776800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115413787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3880 + ... + 15680.

It is an arithmetic number, because the mean of its divisors is an integer number (6774348).

Almost surely, 2115413780 is an apocalyptic number.

115413780 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 115413780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162584352).

115413780 is an abundant number, since it is smaller than the sum of its proper divisors (209754924).

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

115413780 is a wasteful number, since it uses less digits than its factorization.

115413780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11976 (or 11974 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 115413780 is about 10743.0805637862. The cubic root of 115413780 is about 486.8769581794.

The spelling of 115413780 in words is "one hundred fifteen million, four hundred thirteen thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 163 326 489 652 815 978 1630 1956 2445 3260 4890 9780 11801 23602 35403 47204 59005 70806 118010 141612 177015 236020 354030 708060 1923563 3847126 5770689 7694252 9617815 11541378 19235630 23082756 28853445 38471260 57706890 115413780