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213351168 = 283833347
BaseRepresentation
bin11001011011101…
…11101100000000
3112212110100210010
430231313230000
5414104214133
633100504520
75200312032
oct1455675400
9485410703
10213351168
11aa481988
125b54b140
13352802c4
1420499c52
1513ae5263
hexcb77b00

213351168 has 72 divisors (see below), whose sum is σ = 574838208. Its totient is φ = 70239232.

The previous prime is 213351161. The next prime is 213351179. The reversal of 213351168 is 861153312.

213351168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (213351161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62071 + ... + 65417.

It is an arithmetic number, because the mean of its divisors is an integer number (7983864).

Almost surely, 2213351168 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 213351168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287419104).

213351168 is an abundant number, since it is smaller than the sum of its proper divisors (361487040).

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

213351168 is an equidigital number, since it uses as much as digits as its factorization.

213351168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3449 (or 3435 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 213351168 is about 14606.5453821224. The cubic root of 213351168 is about 597.5372833186.

It can be divided in two parts, 2133 and 51168, that added together give a triangular number (53301 = T326).

The spelling of 213351168 in words is "two hundred thirteen million, three hundred fifty-one thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 83 96 128 166 192 249 256 332 384 498 664 768 996 1328 1992 2656 3347 3984 5312 6694 7968 10041 10624 13388 15936 20082 21248 26776 31872 40164 53552 63744 80328 107104 160656 214208 277801 321312 428416 555602 642624 833403 856832 1111204 1285248 1666806 2222408 2570496 3333612 4444816 6667224 8889632 13334448 17779264 26668896 35558528 53337792 71117056 106675584 213351168