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389462590550 = 252111741653753
BaseRepresentation
bin1011010101011011100…
…01111000010001010110
31101020021022120111200202
411222231301320101112
522340104410344200
6454525554540502
740065150253445
oct5525561702126
91336238514622
10389462590550
1114019652a750
1263592297732
132a9594cb417
1414bc890ad5c
15a1e67831d5
hex5aadc78456

389462590550 has 48 divisors (see below), whose sum is σ = 836740610352. Its totient is φ = 133292006400.

The previous prime is 389462590549. The next prime is 389462590619. The reversal of 389462590550 is 55095264983.

It is a super-2 number, since 2×3894625905502 (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

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, 20817527 + ... + 20836226.

It is an arithmetic number, because the mean of its divisors is an integer number (17432096049).

Almost surely, 2389462590550 is an apocalyptic number.

389462590550 is an abundant number, since it is smaller than the sum of its proper divisors (447278019802).

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

389462590550 is a wasteful number, since it uses less digits than its factorization.

389462590550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41653793 (or 41653788 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 56.

The spelling of 389462590550 in words is "three hundred eighty-nine billion, four hundred sixty-two million, five hundred ninety thousand, five hundred fifty".

Divisors: 1 2 5 10 11 17 22 25 34 50 55 85 110 170 187 275 374 425 550 850 935 1870 4675 9350 41653753 83307506 208268765 416537530 458191283 708113801 916382566 1041343825 1416227602 2082687650 2290956415 3540569005 4581912830 7081138010 7789251811 11454782075 15578503622 17702845025 22909564150 35405690050 38946259055 77892518110 194731295275 389462590550