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213570214 = 21113746749
BaseRepresentation
bin11001011101011…
…01001010100110
3112212212111020221
430232231022212
5414133221324
633105314554
75202213454
oct1456551246
9485774227
10213570214
11aa611510
125b635a5a
1335328c10
14205159d4
1513b3a0e4
hexcbad2a6

213570214 has 16 divisors (see below), whose sum is σ = 376362000. Its totient is φ = 89609760.

The previous prime is 213570199. The next prime is 213570223. The reversal of 213570214 is 412075312.

It is a happy number.

It is a super-2 number, since 2×2135702142 = 91224472616011592, which contains 22 as substring.

It is a congruent number.

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, 373089 + ... + 373660.

It is an arithmetic number, because the mean of its divisors is an integer number (23522625).

Almost surely, 2213570214 is an apocalyptic number.

213570214 is a deficient number, since it is larger than the sum of its proper divisors (162791786).

213570214 is a wasteful number, since it uses less digits than its factorization.

213570214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746775.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 213570214 is about 14614.0416723095. The cubic root of 213570214 is about 597.7417090151.

The spelling of 213570214 in words is "two hundred thirteen million, five hundred seventy thousand, two hundred fourteen".

Divisors: 1 2 11 13 22 26 143 286 746749 1493498 8214239 9707737 16428478 19415474 106785107 213570214