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87381825484 = 22293173332873
BaseRepresentation
bin101000101100001011…
…1001101011111001100
322100112210022122212211
41101120113031133030
52412424221403414
6104050451440204
76212255155462
oct1213027153714
9270483278784
1087381825484
11340708428a8
1214b27bb6064
138317587aa5
14432d2c8832
1524165ab3c4
hex14585cd7cc

87381825484 has 48 divisors (see below), whose sum is σ = 165531582720. Its totient is φ = 40264197120.

The previous prime is 87381825467. The next prime is 87381825521. The reversal of 87381825484 is 48452818378.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96072 + ... + 428944.

It is an arithmetic number, because the mean of its divisors is an integer number (3448574640).

Almost surely, 287381825484 is an apocalyptic number.

It is an amenable number.

87381825484 is a deficient number, since it is larger than the sum of its proper divisors (78149757236).

87381825484 is a wasteful number, since it uses less digits than its factorization.

87381825484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333010 (or 333008 counting only the distinct ones).

The product of its digits is 13762560, while the sum is 58.

The spelling of 87381825484 in words is "eighty-seven billion, three hundred eighty-one million, eight hundred twenty-five thousand, four hundred eighty-four".

Divisors: 1 2 4 29 31 58 62 73 116 124 146 292 899 1798 2117 2263 3596 4234 4526 8468 9052 65627 131254 262508 332873 665746 1331492 9653317 10319063 19306634 20638126 24299729 38613268 41276252 48599458 97198916 299252827 598505654 704692141 753291599 1197011308 1409384282 1506583198 2818768564 3013166396 21845456371 43690912742 87381825484