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214184280 = 233523711093
BaseRepresentation
bin11001100010000…
…11000101011000
3112221000200121010
430301003011120
5414312344110
633130413520
75210351652
oct1461030530
9487020533
10214184280
11aa9a0902
125b8912a0
13354b257b
14206356d2
1513c0c020
hexcc43158

214184280 has 128 divisors (see below), whose sum is σ = 680555520. Its totient is φ = 53813760.

The previous prime is 214184251. The next prime is 214184281. The reversal of 214184280 is 82481412.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214184281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195414 + ... + 196506.

It is an arithmetic number, because the mean of its divisors is an integer number (5316840).

Almost surely, 2214184280 is an apocalyptic number.

214184280 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 214184280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340277760).

214184280 is an abundant number, since it is smaller than the sum of its proper divisors (466371240).

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

214184280 is a wasteful number, since it uses less digits than its factorization.

214184280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201 (or 1197 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 214184280 is about 14635.0360436864. The cubic root of 214184280 is about 598.3140448068.

The spelling of 214184280 in words is "two hundred fourteen million, one hundred eighty-four thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 23 24 30 40 46 60 69 71 92 115 120 138 142 184 213 230 276 284 345 355 426 460 552 568 690 710 852 920 1065 1093 1380 1420 1633 1704 2130 2186 2760 2840 3266 3279 4260 4372 4899 5465 6532 6558 8165 8520 8744 9798 10930 13064 13116 16330 16395 19596 21860 24495 25139 26232 32660 32790 39192 43720 48990 50278 65320 65580 75417 77603 97980 100556 125695 131160 150834 155206 195960 201112 232809 251390 301668 310412 377085 388015 465618 502780 603336 620824 754170 776030 931236 1005560 1164045 1508340 1552060 1784869 1862472 2328090 3016680 3104120 3569738 4656180 5354607 7139476 8924345 9312360 10709214 14278952 17848690 21418428 26773035 35697380 42836856 53546070 71394760 107092140 214184280