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160042220 = 225135910433
BaseRepresentation
bin10011000101000…
…00110011101100
3102011010222122122
421202200303230
5311432322340
623514132112
73652223252
oct1142406354
9364128578
10160042220
11823810a8
1245721038
1327206a50
14173805d2
15e0b4db5
hex98a0cec

160042220 has 48 divisors (see below), whose sum is σ = 368111520. Its totient is φ = 58085376.

The previous prime is 160042219. The next prime is 160042247. The reversal of 160042220 is 22240061.

It is a super-2 number, since 2×1600422202 = 51227024365056800, which contains 22 as substring.

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, 10124 + ... + 20556.

It is an arithmetic number, because the mean of its divisors is an integer number (7668990).

Almost surely, 2160042220 is an apocalyptic number.

160042220 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 160042220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184055760).

160042220 is an abundant number, since it is smaller than the sum of its proper divisors (208069300).

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

160042220 is a wasteful number, since it uses less digits than its factorization.

160042220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10514 (or 10512 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 160042220 is about 12650.7794226285. The cubic root of 160042220 is about 542.9312702494.

Adding to 160042220 its reverse (22240061), we get a palindrome (182282281).

The spelling of 160042220 in words is "one hundred sixty million, forty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 59 65 118 130 236 260 295 590 767 1180 1534 3068 3835 7670 10433 15340 20866 41732 52165 104330 135629 208660 271258 542516 615547 678145 1231094 1356290 2462188 2712580 3077735 6155470 8002111 12310940 16004222 32008444 40010555 80021110 160042220