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213150311 = 11471492767
BaseRepresentation
bin11001011010001…
…10101001100111
3112212002011020222
430231012221213
5414031302221
633052314555
75165514323
oct1455065147
9485064228
10213150311
11aa354a90
125b472a5b
133520ca5a
1420446983
1513aa59ab
hexcb46a67

213150311 has 16 divisors (see below), whose sum is σ = 239155200. Its totient is φ = 188309280.

The previous prime is 213150271. The next prime is 213150317. The reversal of 213150311 is 113051312.

It is a cyclic number.

It is not a de Polignac number, because 213150311 - 26 = 213150247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213150311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213150317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75650 + ... + 78416.

It is an arithmetic number, because the mean of its divisors is an integer number (14947200).

Almost surely, 2213150311 is an apocalyptic number.

213150311 is a deficient number, since it is larger than the sum of its proper divisors (26004889).

213150311 is a wasteful number, since it uses less digits than its factorization.

213150311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 213150311 is about 14599.6681811608. The cubic root of 213150311 is about 597.3497095787.

The spelling of 213150311 in words is "two hundred thirteen million, one hundred fifty thousand, three hundred eleven".

Divisors: 1 11 47 149 517 1639 2767 7003 30437 77033 130049 412283 1430539 4535113 19377301 213150311