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213086848 = 2713373461
BaseRepresentation
bin11001011001101…
…11001010000000
3112211221221012111
430230313022000
5414022234343
633051105104
75165131312
oct1454671200
9484857174
10213086848
11aa311337
125b442194
13351b9bc0
142042b7b2
1513a91c9d
hexcb37280

213086848 has 64 divisors (see below), whose sum is σ = 469654920. Its totient is φ = 95662080.

The previous prime is 213086773. The next prime is 213086851. The reversal of 213086848 is 848680312.

It can be written as a sum of positive squares in 4 ways, for example, as 159971904 + 53114944 = 12648^2 + 7288^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 213086848.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59838 + ... + 63298.

Almost surely, 2213086848 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 213086848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234827460).

213086848 is an abundant number, since it is smaller than the sum of its proper divisors (256568072).

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

213086848 is a wasteful number, since it uses less digits than its factorization.

213086848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3525 (or 3513 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 213086848 is about 14597.4945795503. The cubic root of 213086848 is about 597.2904190754.

The spelling of 213086848 in words is "two hundred thirteen million, eighty-six thousand, eight hundred forty-eight".

Divisors: 1 2 4 8 13 16 26 32 37 52 64 74 104 128 148 208 296 416 481 592 832 962 1184 1664 1924 2368 3461 3848 4736 6922 7696 13844 15392 27688 30784 44993 55376 61568 89986 110752 128057 179972 221504 256114 359944 443008 512228 719888 1024456 1439776 1664741 2048912 2879552 3329482 4097824 5759104 6658964 8195648 13317928 16391296 26635856 53271712 106543424 213086848