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213220010 = 2561431811
BaseRepresentation
bin11001011010101…
…11101010101010
3112212012200212102
430231113222222
5414041020020
633054013402
75166224453
oct1455275252
9485180772
10213220010
11aa3a2393
125b4a7262
13352356b3
142046412a
1513abb475
hexcb57aaa

213220010 has 32 divisors (see below), whose sum is σ = 391474944. Its totient is φ = 83592000.

The previous prime is 213220009. The next prime is 213220013. The reversal of 213220010 is 10022312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 213219973 and 213220000.

It is not an unprimeable number, because it can be changed into a prime (213220013) 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, 262505 + ... + 263315.

It is an arithmetic number, because the mean of its divisors is an integer number (12233592).

Almost surely, 2213220010 is an apocalyptic number.

213220010 is a deficient number, since it is larger than the sum of its proper divisors (178254934).

213220010 is a wasteful number, since it uses less digits than its factorization.

213220010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 213220010 is about 14602.0549923632. The cubic root of 213220010 is about 597.4148125256.

Adding to 213220010 its reverse (10022312), we get a palindrome (223242322).

The spelling of 213220010 in words is "two hundred thirteen million, two hundred twenty thousand, ten".

Divisors: 1 2 5 10 61 122 305 431 610 811 862 1622 2155 4055 4310 8110 26291 49471 52582 98942 131455 247355 262910 349541 494710 699082 1747705 3495410 21322001 42644002 106610005 213220010