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213454293 = 3135473187
BaseRepresentation
bin11001011100100…
…00110111010101
3112212122121020120
430232100313111
5414121014133
633103022153
75201221503
oct1456206725
9485577216
10213454293
11aa542408
125b59a959
13352b8220
14204c5673
1513b15ab3
hexcb90dd5

213454293 has 8 divisors (see below), whose sum is σ = 306498528. Its totient is φ = 131356464.

The previous prime is 213454291. The next prime is 213454301. The reversal of 213454293 is 392454312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213454293 - 21 = 213454291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213454291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2736555 + ... + 2736632.

It is an arithmetic number, because the mean of its divisors is an integer number (38312316).

Almost surely, 2213454293 is an apocalyptic number.

It is an amenable number.

213454293 is a deficient number, since it is larger than the sum of its proper divisors (93044235).

213454293 is a wasteful number, since it uses less digits than its factorization.

213454293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5473203.

The product of its digits is 25920, while the sum is 33.

The square root of 213454293 is about 14610.0750511419. The cubic root of 213454293 is about 597.6335426255.

The spelling of 213454293 in words is "two hundred thirteen million, four hundred fifty-four thousand, two hundred ninety-three".

Divisors: 1 3 13 39 5473187 16419561 71151431 213454293