Search a number
-
+
214020560 = 245131910831
BaseRepresentation
bin11001100000110…
…11000111010000
3112220201101000102
430300123013100
5414242124220
633123111532
75206100435
oct1460330720
9486641012
10214020560
11aa8998a6
125b8125a8
1335455bb0
14205d1b8c
1513bc8775
hexcc1b1d0

214020560 has 80 divisors (see below), whose sum is σ = 564130560. Its totient is φ = 74856960.

The previous prime is 214020557. The next prime is 214020571. The reversal of 214020560 is 65020412.

It is a happy number.

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 (20).

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, 14345 + ... + 25175.

It is an arithmetic number, because the mean of its divisors is an integer number (7051632).

Almost surely, 2214020560 is an apocalyptic number.

214020560 is a gapful number since it is divisible by the number (20) 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 214020560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282065280).

214020560 is an abundant number, since it is smaller than the sum of its proper divisors (350110000).

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

214020560 is a wasteful number, since it uses less digits than its factorization.

214020560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10876 (or 10870 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 214020560 is about 14629.4415477830. The cubic root of 214020560 is about 598.1615578225.

Adding to 214020560 its reverse (65020412), we get a palindrome (279040972).

The spelling of 214020560 in words is "two hundred fourteen million, twenty thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 13 16 19 20 26 38 40 52 65 76 80 95 104 130 152 190 208 247 260 304 380 494 520 760 988 1040 1235 1520 1976 2470 3952 4940 9880 10831 19760 21662 43324 54155 86648 108310 140803 173296 205789 216620 281606 411578 433240 563212 704015 823156 866480 1028945 1126424 1408030 1646312 2057890 2252848 2675257 2816060 3292624 4115780 5350514 5632120 8231560 10701028 11264240 13376285 16463120 21402056 26752570 42804112 53505140 107010280 214020560