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1220160 = 26353141
BaseRepresentation
bin100101001111001000000
32021222202010
410221321000
5303021120
642052520
713241214
oct4517100
92258663
101220160
117637a7
124aa140
133394b6
1423a944
151917e0
hex129e40

1220160 has 112 divisors (see below), whose sum is σ = 4096512. Its totient is φ = 307200.

The previous prime is 1220147. The next prime is 1220171. The reversal of 1220160 is 610221.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 29740 + ... + 29780.

It is an arithmetic number, because the mean of its divisors is an integer number (36576).

21220160 is an apocalyptic number.

1220160 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 1220160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2048256).

1220160 is an abundant number, since it is smaller than the sum of its proper divisors (2876352).

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

1220160 is a wasteful number, since it uses less digits than its factorization.

1220160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1220160 is about 1104.6085279410. The cubic root of 1220160 is about 106.8576439789.

Adding to 1220160 its reverse (610221), we get a palindrome (1830381).

The spelling of 1220160 in words is "one million, two hundred twenty thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 31 32 40 41 48 60 62 64 80 82 93 96 120 123 124 155 160 164 186 192 205 240 246 248 310 320 328 372 410 465 480 492 496 615 620 656 744 820 930 960 984 992 1230 1240 1271 1312 1488 1640 1860 1968 1984 2460 2480 2542 2624 2976 3280 3720 3813 3936 4920 4960 5084 5952 6355 6560 7440 7626 7872 9840 9920 10168 12710 13120 14880 15252 19065 19680 20336 25420 29760 30504 38130 39360 40672 50840 61008 76260 81344 101680 122016 152520 203360 244032 305040 406720 610080 1220160