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213113230 = 25113675279
BaseRepresentation
bin11001011001111…
…01100110001110
3112212000021101121
430230331212032
5414024110410
633051431154
75165301241
oct1454754616
9485007347
10213113230
11aa32a140
125b4554ba
13351c8c05
1420437258
1513a999da
hexcb3d98e

213113230 has 32 divisors (see below), whose sum is σ = 419696640. Its totient is φ = 77269920.

The previous prime is 213113179. The next prime is 213113231. The reversal of 213113230 is 32311312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213113231) 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, 37731 + ... + 43009.

It is an arithmetic number, because the mean of its divisors is an integer number (13115520).

Almost surely, 2213113230 is an apocalyptic number.

213113230 is a deficient number, since it is larger than the sum of its proper divisors (206583410).

213113230 is a wasteful number, since it uses less digits than its factorization.

213113230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5664.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 213113230 is about 14598.3981998026. The cubic root of 213113230 is about 597.3150679697.

Adding to 213113230 its reverse (32311312), we get a palindrome (245424542).

The spelling of 213113230 in words is "two hundred thirteen million, one hundred thirteen thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 367 734 1835 3670 4037 5279 8074 10558 20185 26395 40370 52790 58069 116138 290345 580690 1937393 3874786 9686965 19373930 21311323 42622646 106556615 213113230