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87125055 = 355808337
BaseRepresentation
bin1010011000101…
…10110000111111
320001221102002220
411030112300333
5134301000210
612351220423
72105356623
oct514266077
9201842086
1087125055
11451a8386
1225217713
13150864b4
14b7dd183
1579aec70
hex5316c3f

87125055 has 8 divisors (see below), whose sum is σ = 139400112. Its totient is φ = 46466688.

The previous prime is 87125053. The next prime is 87125063. The reversal of 87125055 is 55052178.

It is a happy number.

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

It is not a de Polignac number, because 87125055 - 21 = 87125053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87125053) 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, 2904154 + ... + 2904183.

It is an arithmetic number, because the mean of its divisors is an integer number (17425014).

Almost surely, 287125055 is an apocalyptic number.

87125055 is a deficient number, since it is larger than the sum of its proper divisors (52275057).

87125055 is a wasteful number, since it uses less digits than its factorization.

87125055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5808345.

The product of its (nonzero) digits is 14000, while the sum is 33.

The square root of 87125055 is about 9334.0802974905. The cubic root of 87125055 is about 443.3169688245.

The spelling of 87125055 in words is "eighty-seven million, one hundred twenty-five thousand, fifty-five".

Divisors: 1 3 5 15 5808337 17425011 29041685 87125055