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213162752 = 2811591283
BaseRepresentation
bin11001011010010…
…01101100000000
3112212002210022202
430231021230000
5414032202002
633052452332
75165565515
oct1455115400
9485083282
10213162752
11aa363370
125b47a0a8
133521560a
142044b30c
1513aa9502
hexcb49b00

213162752 has 72 divisors (see below), whose sum is σ = 472409280. Its totient is φ = 95175680.

The previous prime is 213162749. The next prime is 213162757. The reversal of 213162752 is 257261312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (213162757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165503 + ... + 166785.

It is an arithmetic number, because the mean of its divisors is an integer number (6561240).

Almost surely, 2213162752 is an apocalyptic number.

213162752 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 213162752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236204640).

213162752 is an abundant number, since it is smaller than the sum of its proper divisors (259246528).

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

213162752 is a wasteful number, since it uses less digits than its factorization.

213162752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369 (or 1355 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 213162752 is about 14600.0942462712. The cubic root of 213162752 is about 597.3613312415.

The spelling of 213162752 in words is "two hundred thirteen million, one hundred sixty-two thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 11 16 22 32 44 59 64 88 118 128 176 236 256 352 472 649 704 944 1283 1298 1408 1888 2566 2596 2816 3776 5132 5192 7552 10264 10384 14113 15104 20528 20768 28226 41056 41536 56452 75697 82112 83072 112904 151394 164224 166144 225808 302788 328448 451616 605576 832667 903232 1211152 1665334 1806464 2422304 3330668 3612928 4844608 6661336 9689216 13322672 19378432 26645344 53290688 106581376 213162752