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113663680 = 2651389307
BaseRepresentation
bin1101100011001…
…01111011000000
321220212201020221
412301211323000
5213044214210
615140112424
72550060664
oct661457300
9256781227
10113663680
1159184229
1232095714
131a718b20
141114a8a4
159ea31da
hex6c65ec0

113663680 has 112 divisors (see below), whose sum is σ = 295716960. Its totient is φ = 41361408.

The previous prime is 113663659. The next prime is 113663689. The reversal of 113663680 is 86366311.

It is a happy number.

It is a super-2 number, since 2×1136636802 = 25838864302284800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113663689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370087 + ... + 370393.

It is an arithmetic number, because the mean of its divisors is an integer number (2640330).

Almost surely, 2113663680 is an apocalyptic number.

113663680 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 113663680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147858480).

113663680 is an abundant number, since it is smaller than the sum of its proper divisors (182053280).

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

113663680 is a wasteful number, since it uses less digits than its factorization.

113663680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 113663680 is about 10661.3169918167. The cubic root of 113663680 is about 484.4034611372.

The spelling of 113663680 in words is "one hundred thirteen million, six hundred sixty-three thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 89 104 130 160 178 208 260 307 320 356 416 445 520 614 712 832 890 1040 1157 1228 1424 1535 1780 2080 2314 2456 2848 3070 3560 3991 4160 4628 4912 5696 5785 6140 7120 7982 9256 9824 11570 12280 14240 15964 18512 19648 19955 23140 24560 27323 28480 31928 37024 39910 46280 49120 54646 63856 74048 79820 92560 98240 109292 127712 136615 159640 185120 218584 255424 273230 319280 355199 370240 437168 546460 638560 710398 874336 1092920 1277120 1420796 1748672 1775995 2185840 2841592 3551990 4371680 5683184 7103980 8743360 11366368 14207960 22732736 28415920 56831840 113663680