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87011441 = 1115750383
BaseRepresentation
bin1010010111110…
…11000001110001
320001201122020222
411023323001301
5134233331231
612344542425
72104404446
oct513730161
9201648228
1087011441
114512aa90
1225181a15
131504687a
14b7ad9cd
15798b27b
hex52fb071

87011441 has 8 divisors (see below), whose sum is σ = 95528064. Its totient is φ = 78595920.

The previous prime is 87011417. The next prime is 87011443. The reversal of 87011441 is 14411078.

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

It is a cyclic number.

It is not a de Polignac number, because 87011441 - 26 = 87011377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87011441.

It is not an unprimeable number, because it can be changed into a prime (87011443) 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, 23465 + ... + 26918.

It is an arithmetic number, because the mean of its divisors is an integer number (11941008).

Almost surely, 287011441 is an apocalyptic number.

It is an amenable number.

87011441 is a deficient number, since it is larger than the sum of its proper divisors (8516623).

87011441 is a wasteful number, since it uses less digits than its factorization.

87011441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50551.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 87011441 is about 9327.9923349025. The cubic root of 87011441 is about 443.1241849256.

The spelling of 87011441 in words is "eighty-seven million, eleven thousand, four hundred forty-one".

Divisors: 1 11 157 1727 50383 554213 7910131 87011441