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87276601 = 149585749
BaseRepresentation
bin1010011001110…
…11110000111001
320002020002222201
411030323300321
5134320322401
612354350201
72106560506
oct514736071
9202202881
1087276601
11452a1225
122528b361
131510a479
14b83c4ad
1579deb01
hex533bc39

87276601 has 4 divisors (see below), whose sum is σ = 87862500. Its totient is φ = 86690704.

The previous prime is 87276569. The next prime is 87276613. The reversal of 87276601 is 10667278.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28355625 + 58920976 = 5325^2 + 7676^2 .

It is a cyclic number.

It is not a de Polignac number, because 87276601 - 25 = 87276569 is a prime.

It is a super-2 number, since 2×872766012 = 15234410164226402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87276661) 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, 292726 + ... + 293023.

It is an arithmetic number, because the mean of its divisors is an integer number (21965625).

Almost surely, 287276601 is an apocalyptic number.

It is an amenable number.

87276601 is a deficient number, since it is larger than the sum of its proper divisors (585899).

87276601 is a wasteful number, since it uses less digits than its factorization.

87276601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585898.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 87276601 is about 9342.1946565034. The cubic root of 87276601 is about 443.5738562688.

The spelling of 87276601 in words is "eighty-seven million, two hundred seventy-six thousand, six hundred one".

Divisors: 1 149 585749 87276601