Search a number
-
+
87424426524 = 2237285368877
BaseRepresentation
bin101000101101011100…
…1101110001000011100
322100122202111000112010
41101122321232020130
52413021123122044
6104055012511220
76213313235661
oct1213271561034
9270582430463
1087424426524
113409289a676
1214b3a31b510
1383233524c6
144334c17a68
15241a1c3bb9
hex145ae6e21c

87424426524 has 12 divisors (see below), whose sum is σ = 203990328584. Its totient is φ = 29141475504.

The previous prime is 87424426511. The next prime is 87424426547. The reversal of 87424426524 is 42562442478.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3642684427 + ... + 3642684450.

Almost surely, 287424426524 is an apocalyptic number.

It is an amenable number.

87424426524 is an abundant number, since it is smaller than the sum of its proper divisors (116565902060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87424426524 is a wasteful number, since it uses less digits than its factorization.

87424426524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7285368884 (or 7285368882 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 48.

The spelling of 87424426524 in words is "eighty-seven billion, four hundred twenty-four million, four hundred twenty-six thousand, five hundred twenty-four".

Divisors: 1 2 3 4 6 12 7285368877 14570737754 21856106631 29141475508 43712213262 87424426524