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87381825485 = 594718454451
BaseRepresentation
bin101000101100001011…
…1001101011111001101
322100112210022122212212
41101120113031133031
52412424221403420
6104050451440205
76212255155463
oct1213027153715
9270483278785
1087381825485
11340708428a9
1214b27bb6065
138317587aa6
14432d2c8833
1524165ab3c5
hex14585cd7cd

87381825485 has 8 divisors (see below), whose sum is σ = 104968922976. Its totient is φ = 69831638800.

The previous prime is 87381825467. The next prime is 87381825521. The reversal of 87381825485 is 58452818378.

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

It is not a de Polignac number, because 87381825485 - 232 = 83086858189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9222491 + ... + 9231960.

It is an arithmetic number, because the mean of its divisors is an integer number (13121115372).

Almost surely, 287381825485 is an apocalyptic number.

It is an amenable number.

87381825485 is a deficient number, since it is larger than the sum of its proper divisors (17587097491).

87381825485 is a wasteful number, since it uses less digits than its factorization.

87381825485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18455403.

The product of its digits is 17203200, while the sum is 59.

The spelling of 87381825485 in words is "eighty-seven billion, three hundred eighty-one million, eight hundred twenty-five thousand, four hundred eighty-five".

Divisors: 1 5 947 4735 18454451 92272255 17476365097 87381825485