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87252653 = 1714473547
BaseRepresentation
bin1010011001101…
…01111010101101
320002011220010202
411030311322231
5134314041103
612354043245
72106430625
oct514657255
9202156122
1087252653
1145285234
1225279525
13150cc5b7
14b833885
1579d7988
hex5335ead

87252653 has 8 divisors (see below), whose sum is σ = 92475072. Its totient is φ = 82040256.

The previous prime is 87252637. The next prime is 87252689. The reversal of 87252653 is 35625278.

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 87252653 - 24 = 87252637 is a prime.

It is a super-2 number, since 2×872526532 = 15226050911076818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87252353) 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, 22826 + ... + 26372.

It is an arithmetic number, because the mean of its divisors is an integer number (11559384).

Almost surely, 287252653 is an apocalyptic number.

It is an amenable number.

87252653 is a deficient number, since it is larger than the sum of its proper divisors (5222419).

87252653 is a wasteful number, since it uses less digits than its factorization.

87252653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011.

The product of its digits is 100800, while the sum is 38.

The square root of 87252653 is about 9340.9128568893. The cubic root of 87252653 is about 443.5332815201.

The spelling of 87252653 in words is "eighty-seven million, two hundred fifty-two thousand, six hundred fifty-three".

Divisors: 1 17 1447 3547 24599 60299 5132509 87252653