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420584160 = 25351575581
BaseRepresentation
bin11001000100011…
…001101011100000
31002022101220000010
4121010121223200
51330132143120
6105422324520
713264622613
oct3104315340
91068356003
10420584160
111a6455117
12b8a29740
136919a889
143dc0217a
1526dcc7e0
hex19119ae0

420584160 has 96 divisors (see below), whose sum is σ = 1333517472. Its totient is φ = 111421440.

The previous prime is 420584159. The next prime is 420584183. The reversal of 420584160 is 61485024.

It is a tau number, because it is divible by the number of its divisors (96).

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72570 + ... + 78150.

It is an arithmetic number, because the mean of its divisors is an integer number (13890807).

Almost surely, 2420584160 is an apocalyptic number.

420584160 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 420584160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (666758736).

420584160 is an abundant number, since it is smaller than the sum of its proper divisors (912933312).

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

420584160 is a wasteful number, since it uses less digits than its factorization.

420584160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5756 (or 5748 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 420584160 is about 20508.1486243883. The cubic root of 420584160 is about 749.2342762667.

The spelling of 420584160 in words is "four hundred twenty million, five hundred eighty-four thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 157 160 240 314 471 480 628 785 942 1256 1570 1884 2355 2512 3140 3768 4710 5024 5581 6280 7536 9420 11162 12560 15072 16743 18840 22324 25120 27905 33486 37680 44648 55810 66972 75360 83715 89296 111620 133944 167430 178592 223240 267888 334860 446480 535776 669720 876217 892960 1339440 1752434 2628651 2678880 3504868 4381085 5257302 7009736 8762170 10514604 13143255 14019472 17524340 21029208 26286510 28038944 35048680 42058416 52573020 70097360 84116832 105146040 140194720 210292080 420584160