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287093252 = 22110365071
BaseRepresentation
bin10001000111001…
…011001000000100
3202000012211220102
4101013023020010
51041443441002
644253223232
710054152365
oct2107131004
9660184812
10287093252
11138069456
1280191b18
134762c184
142a1b3b6c
151a30ea02
hex111cb204

287093252 has 12 divisors (see below), whose sum is σ = 502876416. Its totient is φ = 143414280.

The previous prime is 287093231. The next prime is 287093273. The reversal of 287093252 is 252390782.

It is an interprime number because it is at equal distance from previous prime (287093231) and next prime (287093273).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28124 + ... + 36947.

It is an arithmetic number, because the mean of its divisors is an integer number (41906368).

Almost surely, 2287093252 is an apocalyptic number.

It is an amenable number.

287093252 is a deficient number, since it is larger than the sum of its proper divisors (215783164).

287093252 is a wasteful number, since it uses less digits than its factorization.

287093252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66178 (or 66176 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 287093252 is about 16943.8263683266. The cubic root of 287093252 is about 659.6916619115.

The spelling of 287093252 in words is "two hundred eighty-seven million, ninety-three thousand, two hundred fifty-two".

Divisors: 1 2 4 1103 2206 4412 65071 130142 260284 71773313 143546626 287093252