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213884097 = 3731536199
BaseRepresentation
bin11001011111110…
…01110011000001
3112220110102211020
430233321303001
5414223242342
633120140053
75204661540
oct1457716301
9486412736
10213884097
11aa806319
125b767629
1335408a4b
1420598157
1513b9d0ec
hexcbf9cc1

213884097 has 32 divisors (see below), whose sum is σ = 342835200. Its totient is φ = 116026560.

The previous prime is 213884071. The next prime is 213884113. The reversal of 213884097 is 790488312.

It is not a de Polignac number, because 213884097 - 210 = 213883073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213884597) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31404 + ... + 37602.

It is an arithmetic number, because the mean of its divisors is an integer number (10713600).

Almost surely, 2213884097 is an apocalyptic number.

It is an amenable number.

213884097 is a deficient number, since it is larger than the sum of its proper divisors (128951103).

213884097 is a wasteful number, since it uses less digits than its factorization.

213884097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6293.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 213884097 is about 14624.7768188099. The cubic root of 213884097 is about 598.0343982704.

The spelling of 213884097 in words is "two hundred thirteen million, eight hundred eighty-four thousand, ninety-seven".

Divisors: 1 3 7 21 31 53 93 159 217 371 651 1113 1643 4929 6199 11501 18597 34503 43393 130179 192169 328547 576507 985641 1345183 2299829 4035549 6899487 10184957 30554871 71294699 213884097