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985760386990 = 25392932508743
BaseRepresentation
bin11100101100000111110…
…01011100111110101110
310111020102100002010122121
432112003321130332232
5112122314124340430
62032504014103154
7131135030016211
oct16260371347656
93436370063577
10985760386990
11350071048985
1213b0691aaaba
1371c59143022
14359d51d9778
151a9965a1a7a
hexe583e5cfae

985760386990 has 16 divisors (see below), whose sum is σ = 1774414561248. Its totient is φ = 394293962656.

The previous prime is 985760386967. The next prime is 985760387011. The reversal of 985760386990 is 99683067589.

It is a super-2 number, since 2×9857603869902 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 861442 + ... + 1647301.

It is an arithmetic number, because the mean of its divisors is an integer number (110900910078).

Almost surely, 2985760386990 is an apocalyptic number.

985760386990 is a deficient number, since it is larger than the sum of its proper divisors (788654174258).

985760386990 is a wasteful number, since it uses less digits than its factorization.

985760386990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548043.

The product of its (nonzero) digits is 176359680, while the sum is 70.

The spelling of 985760386990 in words is "nine hundred eighty-five billion, seven hundred sixty million, three hundred eighty-six thousand, nine hundred ninety".

Divisors: 1 2 5 10 39293 78586 196465 392930 2508743 5017486 12543715 25087430 98576038699 197152077398 492880193495 985760386990