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213002142 = 2349971143
BaseRepresentation
bin11001011001000…
…10011110011110
3112211210122000020
430230202132132
5414012032032
633045213010
75164326333
oct1454423636
9484718006
10213002142
11aa263731
125b401166
133518a492
142040898a
1513a76b2c
hexcb2279e

213002142 has 16 divisors (see below), whose sum is σ = 426864000. Its totient is φ = 70857432.

The previous prime is 213002137. The next prime is 213002159. The reversal of 213002142 is 241200312.

213002142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 32578 + ... + 38565.

It is an arithmetic number, because the mean of its divisors is an integer number (26679000).

Almost surely, 2213002142 is an apocalyptic number.

213002142 is an abundant number, since it is smaller than the sum of its proper divisors (213861858).

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

213002142 is a wasteful number, since it uses less digits than its factorization.

213002142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71647.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 213002142 is about 14594.5929028528. The cubic root of 213002142 is about 597.2112638887.

Adding to 213002142 its reverse (241200312), we get a palindrome (454202454).

The spelling of 213002142 in words is "two hundred thirteen million, two thousand, one hundred forty-two".

Divisors: 1 2 3 6 499 998 1497 2994 71143 142286 213429 426858 35500357 71000714 106501071 213002142