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87245002 = 2133355577
BaseRepresentation
bin1010011001101…
…00000011001010
320002011111122101
411030310003022
5134313320002
612353544014
72106366415
oct514640312
9202144571
1087245002
114527a509
122527500a
13150c8c80
14b830b7c
1579d5587
hex53340ca

87245002 has 8 divisors (see below), whose sum is σ = 140934276. Its totient is φ = 40266912.

The previous prime is 87244973. The next prime is 87245023. The reversal of 87245002 is 20054278.

It can be written as a sum of positive squares in 2 ways, for example, as 68244121 + 19000881 = 8261^2 + 4359^2 .

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

It is a super-2 number, since 2×872450022 = 15223380747960008, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1677763 + ... + 1677814.

Almost surely, 287245002 is an apocalyptic number.

87245002 is a deficient number, since it is larger than the sum of its proper divisors (53689274).

87245002 is a wasteful number, since it uses less digits than its factorization.

87245002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355592.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 87245002 is about 9340.5033054970. The cubic root of 87245002 is about 443.5203169771.

The spelling of 87245002 in words is "eighty-seven million, two hundred forty-five thousand, two".

Divisors: 1 2 13 26 3355577 6711154 43622501 87245002