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87442560243325 = 5271493353501831
BaseRepresentation
bin10011111000011101001110…
…101111011101011001111101
3102110121102112100222202002101
4103320131032233131121331
542430124330410241300
6505550320240025101
724263342105310610
oct2370351657353175
9373542470882071
1087442560243325
11259531aa6a85a1
129982b54602191
1339a3a4b4114c1
1417843575b0177
15a198ad193b6a
hex4f874ebdd67d

87442560243325 has 24 divisors (see below), whose sum is σ = 124750268150400. Its totient is φ = 59558192500800.

The previous prime is 87442560243307. The next prime is 87442560243359. The reversal of 87442560243325 is 52334206524478.

It is not a de Polignac number, because 87442560243325 - 29 = 87442560242813 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1676724841 + ... + 1676776990.

It is an arithmetic number, because the mean of its divisors is an integer number (5197927839600).

Almost surely, 287442560243325 is an apocalyptic number.

It is an amenable number.

87442560243325 is a deficient number, since it is larger than the sum of its proper divisors (37307707907075).

87442560243325 is a wasteful number, since it uses less digits than its factorization.

87442560243325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3353501997 (or 3353501992 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 55.

The spelling of 87442560243325 in words is "eighty-seven trillion, four hundred forty-two billion, five hundred sixty million, two hundred forty-three thousand, three hundred twenty-five".

Divisors: 1 5 7 25 35 149 175 745 1043 3725 5215 26075 3353501831 16767509155 23474512817 83837545775 117372564085 499671772819 586862820425 2498358864095 3497702409733 12491794320475 17488512048665 87442560243325