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389198309604 = 2231317271541537
BaseRepresentation
bin1011010100111100000…
…01101110100011100100
31101012120220021122101120
411222132001232203210
522334034231401404
6454443434253540
740055461022166
oct5523601564344
91335526248346
10389198309604
11140070332545
12635198872b0
132a916828770
1414ba1794936
15a1cd47c9d9
hex5a9e06e8e4

389198309604 has 96 divisors (see below), whose sum is σ = 1039337058816. Its totient is φ = 112292904960.

The previous prime is 389198309561. The next prime is 389198309629. The reversal of 389198309604 is 406903891983.

It is a super-2 number, since 2×3891983096042 (a number of 24 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 447924 + ... + 989460.

It is an arithmetic number, because the mean of its divisors is an integer number (10826427696).

Almost surely, 2389198309604 is an apocalyptic number.

389198309604 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389198309604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (519668529408).

389198309604 is an abundant number, since it is smaller than the sum of its proper divisors (650138749212).

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

389198309604 is a wasteful number, since it uses less digits than its factorization.

389198309604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541845 (or 541843 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 60.

The spelling of 389198309604 in words is "three hundred eighty-nine billion, one hundred ninety-eight million, three hundred nine thousand, six hundred four".

Divisors: 1 2 3 4 6 12 13 17 26 34 39 51 52 68 78 102 156 204 221 271 442 542 663 813 884 1084 1326 1626 2652 3252 3523 4607 7046 9214 10569 13821 14092 18428 21138 27642 42276 55284 59891 119782 179673 239564 359346 541537 718692 1083074 1624611 2166148 3249222 6498444 7039981 9206129 14079962 18412258 21119943 27618387 28159924 36824516 42239886 55236774 84479772 110473548 119679677 146756527 239359354 293513054 359039031 440269581 478718708 587026108 718078062 880539162 1436156124 1761078324 1907834851 2494860959 3815669702 4989721918 5723504553 7484582877 7631339404 9979443836 11447009106 14969165754 22894018212 29938331508 32433192467 64866384934 97299577401 129732769868 194599154802 389198309604