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213842910 = 23519375163
BaseRepresentation
bin11001011111011…
…11101111011110
3112220101100022210
430233233233132
5414220433120
633115221250
75204430501
oct1457575736
9486340283
10213842910
11aa788386
125b747826
13353c3088
1420587138
1513b90ce0
hexcbefbde

213842910 has 32 divisors (see below), whose sum is σ = 540236160. Its totient is φ = 54023328.

The previous prime is 213842899. The next prime is 213842939. The reversal of 213842910 is 19248312.

213842910 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187012 + ... + 188151.

It is an arithmetic number, because the mean of its divisors is an integer number (16882380).

Almost surely, 2213842910 is an apocalyptic number.

213842910 is an abundant number, since it is smaller than the sum of its proper divisors (326393250).

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

213842910 is a wasteful number, since it uses less digits than its factorization.

213842910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375192.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 213842910 is about 14623.3686269614. The cubic root of 213842910 is about 597.9960085937.

The spelling of 213842910 in words is "two hundred thirteen million, eight hundred forty-two thousand, nine hundred ten".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 375163 750326 1125489 1875815 2250978 3751630 5627445 7128097 11254890 14256194 21384291 35640485 42768582 71280970 106921455 213842910