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213480342 = 23223515653
BaseRepresentation
bin11001011100101…
…11001110010110
3112212200220222100
430232113032112
5414122332332
633103342530
75201360445
oct1456271626
9485626870
10213480342
11aa55aa39
125b5b1a46
13352c703a
14204d0d5c
1513b1d67c
hexcb97396

213480342 has 24 divisors (see below), whose sum is σ = 482652144. Its totient is φ = 68066064.

The previous prime is 213480331. The next prime is 213480347. The reversal of 213480342 is 243084312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213480347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257413 + ... + 258240.

It is an arithmetic number, because the mean of its divisors is an integer number (20110506).

Almost surely, 2213480342 is an apocalyptic number.

213480342 is an abundant number, since it is smaller than the sum of its proper divisors (269171802).

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

213480342 is a wasteful number, since it uses less digits than its factorization.

213480342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515684 (or 515681 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 213480342 is about 14610.9664978057. The cubic root of 213480342 is about 597.6578524714.

The spelling of 213480342 in words is "two hundred thirteen million, four hundred eighty thousand, three hundred forty-two".

Divisors: 1 2 3 6 9 18 23 46 69 138 207 414 515653 1031306 1546959 3093918 4640877 9281754 11860019 23720038 35580057 71160114 106740171 213480342