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830731400764 = 221277829208877
BaseRepresentation
bin11000001011010110111…
…00110011011000111100
32221102021002200122120221
430011223130303120330
5102102314214311024
61433344400551124
7114006204253426
oct14055334633074
92842232618527
10830731400764
112a0347244a71
121150023224a4
1360450a26595
142c2c999d816
15169212423e4
hexc16b73363c

830731400764 has 24 divisors (see below), whose sum is σ = 1465421207040. Its totient is φ = 412040494656.

The previous prime is 830731400761. The next prime is 830731400771. The reversal of 830731400764 is 467004137038.

It is a super-2 number, since 2×8307314007642 (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 830731400764.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830731400761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3872694 + ... + 4081570.

It is an arithmetic number, because the mean of its divisors is an integer number (61059216960).

Almost surely, 2830731400764 is an apocalyptic number.

It is an amenable number.

830731400764 is a deficient number, since it is larger than the sum of its proper divisors (634689806276).

830731400764 is a wasteful number, since it uses less digits than its factorization.

830731400764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216837 (or 216835 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 830731400764 in words is "eight hundred thirty billion, seven hundred thirty-one million, four hundred thousand, seven hundred sixty-four".

Divisors: 1 2 4 127 254 508 7829 15658 31316 208877 417754 835508 994283 1988566 3977132 26527379 53054758 106109516 1635298033 3270596066 6541192132 207682850191 415365700382 830731400764