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213960912 = 24311317197
BaseRepresentation
bin11001100000011…
…00100011010000
3112220121100012020
430300030203100
5414233222122
633121531440
75205431514
oct1460144320
9486540166
10213960912
11aa859000
125b7a3b80
13354349b9
14205b8144
1513bb5c5c
hexcc0c8d0

213960912 has 160 divisors (see below), whose sum is σ = 646994304. Its totient is φ = 60712960.

The previous prime is 213960911. The next prime is 213960931. The reversal of 213960912 is 219069312.

213960912 is digitally balanced in base 3, 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 (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213960911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1085998 + ... + 1086194.

Almost surely, 2213960912 is an apocalyptic number.

213960912 is a gapful number since it is divisible by the number (22) 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 213960912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323497152).

213960912 is an abundant number, since it is smaller than the sum of its proper divisors (433033392).

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

213960912 is a wasteful number, since it uses less digits than its factorization.

213960912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 213960912 is about 14627.4027769799. The cubic root of 213960912 is about 598.1059830128.

The spelling of 213960912 in words is "two hundred thirteen million, nine hundred sixty thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 11 12 16 17 22 24 33 34 44 48 51 66 68 88 102 121 132 136 176 187 197 204 242 264 272 363 374 394 408 484 528 561 591 726 748 788 816 968 1122 1182 1331 1452 1496 1576 1936 2057 2167 2244 2364 2662 2904 2992 3152 3349 3993 4114 4334 4488 4728 5324 5808 6171 6501 6698 7986 8228 8668 8976 9456 10047 10648 12342 13002 13396 15972 16456 17336 20094 21296 22627 23837 24684 26004 26792 31944 32912 34672 36839 40188 45254 47674 49368 52008 53584 63888 67881 71511 73678 80376 90508 95348 98736 104016 110517 135762 143022 147356 160752 181016 190696 221034 262207 271524 286044 294712 362032 381392 405229 442068 524414 543048 572088 589424 786621 810458 884136 1048828 1086096 1144176 1215687 1573242 1620916 1768272 2097656 2431374 3146484 3241832 4195312 4457519 4862748 6292968 6483664 8915038 9725496 12585936 13372557 17830076 19450992 26745114 35660152 53490228 71320304 106980456 213960912