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214978752 = 2633472647
BaseRepresentation
bin11001101000001…
…01000011000000
3112222112001102000
430310011003000
5420013310002
633155424000
75220201132
oct1464050300
9488461360
10214978752
1110039379a
125bbb5000
1335700081
14207a1052
1513d1761c
hexcd050c0

214978752 has 112 divisors (see below), whose sum is σ = 645688320. Its totient is φ = 70108416.

The previous prime is 214978747. The next prime is 214978781. The reversal of 214978752 is 257879412.

It is a happy number.

214978752 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2149787522 = 92431727622955008, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 214978698 and 214978707.

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, 79893 + ... + 82539.

Almost surely, 2214978752 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 214978752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322844160).

214978752 is an abundant number, since it is smaller than the sum of its proper divisors (430709568).

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

214978752 is a wasteful number, since it uses less digits than its factorization.

214978752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2715 (or 2699 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 214978752 is about 14662.1537299266. The cubic root of 214978752 is about 599.0529058076.

The spelling of 214978752 in words is "two hundred fourteen million, nine hundred seventy-eight thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 47 48 54 64 72 94 96 108 141 144 188 192 216 282 288 376 423 432 564 576 752 846 864 1128 1269 1504 1692 1728 2256 2538 2647 3008 3384 4512 5076 5294 6768 7941 9024 10152 10588 13536 15882 20304 21176 23823 27072 31764 40608 42352 47646 63528 71469 81216 84704 95292 124409 127056 142938 169408 190584 248818 254112 285876 373227 381168 497636 508224 571752 746454 762336 995272 1119681 1143504 1492908 1524672 1990544 2239362 2287008 2985816 3359043 3981088 4478724 4574016 5971632 6718086 7962176 8957448 11943264 13436172 17914896 23886528 26872344 35829792 53744688 71659584 107489376 214978752