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214116780 = 223537432243
BaseRepresentation
bin11001100001100…
…10100110101100
3112220220021000010
430300302212230
5414303214110
633125133220
75206651113
oct1460624654
9486807003
10214116780
11aa955119
125b85a210
133548a927
1420618c7a
1513be7020
hexcc329ac

214116780 has 96 divisors (see below), whose sum is σ = 630330624. Its totient is φ = 54238464.

The previous prime is 214116779. The next prime is 214116787. The reversal of 214116780 is 87611412.

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

It is not an unprimeable number, because it can be changed into a prime (214116787) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 94339 + ... + 96581.

It is an arithmetic number, because the mean of its divisors is an integer number (6565944).

Almost surely, 2214116780 is an apocalyptic number.

214116780 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 214116780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315165312).

214116780 is an abundant number, since it is smaller than the sum of its proper divisors (416213844).

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

214116780 is a wasteful number, since it uses less digits than its factorization.

214116780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2335 (or 2333 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 214116780 is about 14632.7297521686. The cubic root of 214116780 is about 598.2511854764.

The spelling of 214116780 in words is "two hundred fourteen million, one hundred sixteen thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 37 43 60 74 86 111 129 148 172 185 215 222 258 370 430 444 516 555 645 740 860 1110 1290 1591 2220 2243 2580 3182 4486 4773 6364 6729 7955 8972 9546 11215 13458 15910 19092 22430 23865 26916 31820 33645 44860 47730 67290 82991 95460 96449 134580 165982 192898 248973 289347 331964 385796 414955 482245 497946 578694 829910 964490 995892 1157388 1244865 1446735 1659820 1928980 2489730 2893470 3568613 4979460 5786940 7137226 10705839 14274452 17843065 21411678 35686130 42823356 53529195 71372260 107058390 214116780