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13837680 = 2432519219
BaseRepresentation
bin110100110010…
…010101110000
3222001000201200
4310302111300
512020301210
61212331200
7225422043
oct64622560
928030650
1013837680
1178a14aa
124773b00
132b3659c
141ba2c5a
1513350c0
hexd32570

13837680 has 60 divisors (see below), whose sum is σ = 46473960. Its totient is φ = 3689856.

The previous prime is 13837673. The next prime is 13837699. The reversal of 13837680 is 8673831.

It is a tau number, because it is divible by the number of its divisors (60).

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

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 8890 + ... + 10329.

It is an arithmetic number, because the mean of its divisors is an integer number (774566).

Almost surely, 213837680 is an apocalyptic number.

13837680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13837680 is an abundant number, since it is smaller than the sum of its proper divisors (32636280).

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

13837680 is a wasteful number, since it uses less digits than its factorization.

13837680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19238 (or 19229 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 13837680 is about 3719.9032245476. The cubic root of 13837680 is about 240.0791405670.

It can be divided in two parts, 1 and 3837680, that added together give a square (3837681 = 19592).

The spelling of 13837680 in words is "thirteen million, eight hundred thirty-seven thousand, six 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 90 120 144 180 240 360 720 19219 38438 57657 76876 96095 115314 153752 172971 192190 230628 288285 307504 345942 384380 461256 576570 691884 768760 864855 922512 1153140 1383768 1537520 1729710 2306280 2767536 3459420 4612560 6918840 13837680