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213872088 = 23364313859
BaseRepresentation
bin11001011111101…
…10110111011000
3112220102211100110
430233312313120
5414222401323
633120004320
75204611533
oct1457666730
9486384313
10213872088
11aa7a82a1
125b7606a0
1335403441
1420593a1a
1513b99793
hexcbf6dd8

213872088 has 32 divisors (see below), whose sum is σ = 535550400. Its totient is φ = 71174688.

The previous prime is 213872083. The next prime is 213872089. The reversal of 213872088 is 880278312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213872081) 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, 8503 + ... + 22361.

It is an arithmetic number, because the mean of its divisors is an integer number (16735950).

Almost surely, 2213872088 is an apocalyptic number.

It is an amenable number.

213872088 is an abundant number, since it is smaller than the sum of its proper divisors (321678312).

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

213872088 is a wasteful number, since it uses less digits than its factorization.

213872088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14511 (or 14507 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 213872088 is about 14624.3662426787. The cubic root of 213872088 is about 598.0232054022.

The spelling of 213872088 in words is "two hundred thirteen million, eight hundred seventy-two thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 12 24 643 1286 1929 2572 3858 5144 7716 13859 15432 27718 41577 55436 83154 110872 166308 332616 8911337 17822674 26734011 35645348 53468022 71290696 106936044 213872088