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214309872 = 243271071987
BaseRepresentation
bin11001100011000…
…01101111110000
3112221021001212200
430301201233300
5414330403442
633133223200
75211414060
oct1461415760
9487231780
10214309872
11aaa771a7
125b931b00
133552779a
14206693a0
1513c3434c
hexcc61bf0

214309872 has 120 divisors (see below), whose sum is σ = 692205696. Its totient is φ = 60628608.

The previous prime is 214309861. The next prime is 214309877. The reversal of 214309872 is 278903412.

214309872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214309877) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106863 + ... + 108849.

Almost surely, 2214309872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 214309872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346102848).

214309872 is an abundant number, since it is smaller than the sum of its proper divisors (477895824).

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

214309872 is a wasteful number, since it uses less digits than its factorization.

214309872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115 (or 2106 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 214309872 is about 14639.3262140032. The cubic root of 214309872 is about 598.4309671364.

The spelling of 214309872 in words is "two hundred fourteen million, three hundred nine thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 84 107 112 126 144 168 214 252 321 336 428 504 642 749 856 963 1008 1284 1498 1712 1926 1987 2247 2568 2996 3852 3974 4494 5136 5961 5992 6741 7704 7948 8988 11922 11984 13482 13909 15408 15896 17883 17976 23844 26964 27818 31792 35766 35952 41727 47688 53928 55636 71532 83454 95376 107856 111272 125181 143064 166908 212609 222544 250362 286128 333816 425218 500724 637827 667632 850436 1001448 1275654 1488263 1700872 1913481 2002896 2551308 2976526 3401744 3826962 4464789 5102616 5953052 7653924 8929578 10205232 11906104 13394367 15307848 17859156 23812208 26788734 30615696 35718312 53577468 71436624 107154936 214309872