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4685520 = 243572789
BaseRepresentation
bin10001110111111011010000
322211001022210
4101313323100
52144414040
6244232120
754553260
oct21677320
98731283
104685520
112710334
12169b640
13c808c8
1489d7a0
15628480
hex477ed0

4685520 has 80 divisors (see below), whose sum is σ = 16606080. Its totient is φ = 1070592.

The previous prime is 4685509. The next prime is 4685531. The reversal of 4685520 is 255864.

It is an interprime number because it is at equal distance from previous prime (4685509) and next prime (4685531).

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a congruent number.

It is an unprimeable number.

It is a nontrivial repunit in base 167.

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, 286 + ... + 3074.

It is an arithmetic number, because the mean of its divisors is an integer number (207576).

Almost surely, 24685520 is an apocalyptic number.

4685520 is a gapful number since it is divisible by the number (40) 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 4685520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8303040).

4685520 is an abundant number, since it is smaller than the sum of its proper divisors (11920560).

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

4685520 is a wasteful number, since it uses less digits than its factorization.

4685520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2812 (or 2806 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 4685520 is about 2164.6061997509. The cubic root of 4685520 is about 167.3346701621.

The spelling of 4685520 in words is "four million, six hundred eighty-five thousand, five hundred twenty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 48 56 60 70 80 84 105 112 120 140 168 210 240 280 336 420 560 840 1680 2789 5578 8367 11156 13945 16734 19523 22312 27890 33468 39046 41835 44624 55780 58569 66936 78092 83670 97615 111560 117138 133872 156184 167340 195230 223120 234276 292845 312368 334680 390460 468552 585690 669360 780920 937104 1171380 1561840 2342760 4685520