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214444869760 = 27511166918251
BaseRepresentation
bin1100011110110111101…
…0010000100010000000
3202111112000212002122201
43013231322100202000
512003140341313020
6242303053442544
721331100213632
oct3075572204200
9674460762581
10214444869760
1182a445a16a0
12356891a0454
13172b6b4c8a4
14a5446bca52
1558a1680a0a
hex31ede90880

214444869760 has 128 divisors (see below), whose sum is σ = 559628222400. Its totient is φ = 77928960000.

The previous prime is 214444869713. The next prime is 214444869787. The reversal of 214444869760 is 67968444412.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (55).

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, 11740635 + ... + 11758885.

Almost surely, 2214444869760 is an apocalyptic number.

214444869760 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 214444869760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279814111200).

214444869760 is an abundant number, since it is smaller than the sum of its proper divisors (345183352640).

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

214444869760 is a wasteful number, since it uses less digits than its factorization.

214444869760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19950 (or 19938 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 55.

The spelling of 214444869760 in words is "two hundred fourteen billion, four hundred forty-four million, eight hundred sixty-nine thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 110 128 160 176 220 320 352 440 640 704 880 1408 1669 1760 3338 3520 6676 7040 8345 13352 16690 18251 18359 26704 33380 36502 36718 53408 66760 73004 73436 91255 91795 106816 133520 146008 146872 182510 183590 200761 213632 267040 292016 293744 365020 367180 401522 534080 584032 587488 730040 734360 803044 1003805 1068160 1168064 1174976 1460080 1468720 1606088 2007610 2336128 2349952 2920160 2937440 3212176 4015220 5840320 5874880 6424352 8030440 11680640 11749760 12848704 16060880 25697408 30460919 32121760 60921838 64243520 121843676 128487040 152304595 243687352 304609190 335070109 487374704 609218380 670140218 974749408 1218436760 1340280436 1675350545 1949498816 2436873520 2680560872 3350701090 3898997632 4873747040 5361121744 6701402180 9747494080 10722243488 13402804360 19494988160 21444486976 26805608720 42888973952 53611217440 107222434880 214444869760