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87413849 = 385122699
BaseRepresentation
bin1010011010111…
…01010001011001
320002111002020222
411031131101121
5134334220344
612401325425
72111001605
oct515352131
9202432228
1087413849
1145385356
1225336875
1315157a93
14b876505
157a1a5ee
hex535d459

87413849 has 4 divisors (see below), whose sum is σ = 87440400. Its totient is φ = 87387300.

The previous prime is 87413839. The next prime is 87413873. The reversal of 87413849 is 94831478.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87413849 - 212 = 87409753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87413839) 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, 7499 + ... + 15200.

It is an arithmetic number, because the mean of its divisors is an integer number (21860100).

Almost surely, 287413849 is an apocalyptic number.

It is an amenable number.

87413849 is a deficient number, since it is larger than the sum of its proper divisors (26551).

87413849 is a wasteful number, since it uses less digits than its factorization.

87413849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26550.

The product of its digits is 193536, while the sum is 44.

The square root of 87413849 is about 9349.5373682338. The cubic root of 87413849 is about 443.8062505166.

The spelling of 87413849 in words is "eighty-seven million, four hundred thirteen thousand, eight hundred forty-nine".

Divisors: 1 3851 22699 87413849