Search a number
-
+
87541051 = 136733927
BaseRepresentation
bin1010011011111…
…00010100111011
320002201112202011
411031330110323
5134402303201
612404150351
72112041503
oct515742473
9202645664
1087541051
1145461984
12253983b7
13151a0950
14b8aaa03
157a43151
hex537c53b

87541051 has 4 divisors (see below), whose sum is σ = 94274992. Its totient is φ = 80807112.

The previous prime is 87541031. The next prime is 87541063. The reversal of 87541051 is 15014578.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15014578 = 27507289.

It is a cyclic number.

It is not a de Polignac number, because 87541051 - 29 = 87540539 is a prime.

It is a super-2 number, since 2×875410512 = 15326871220369202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87541031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3366951 + ... + 3366976.

It is an arithmetic number, because the mean of its divisors is an integer number (23568748).

Almost surely, 287541051 is an apocalyptic number.

87541051 is a deficient number, since it is larger than the sum of its proper divisors (6733941).

87541051 is a wasteful number, since it uses less digits than its factorization.

87541051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6733940.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 87541051 is about 9356.3374778810. The cubic root of 87541051 is about 444.0214173447.

The spelling of 87541051 in words is "eighty-seven million, five hundred forty-one thousand, fifty-one".

Divisors: 1 13 6733927 87541051