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690630083812 = 221271891771867
BaseRepresentation
bin10100000110011001100…
…00101100010011100100
32110000122012100100010001
422003030300230103210
542303402300140222
61245134315311044
7100616312565424
oct12031460542344
92400565310101
10690630083812
1124699274aa09
12b1a2274b484
135018417c536
14255d8b1a484
1512e716aae27
hexa0ccc2c4e4

690630083812 has 24 divisors (see below), whose sum is σ = 1218200546304. Its totient is φ = 342573148512.

The previous prime is 690630083791. The next prime is 690630083849. The reversal of 690630083812 is 218380036096.

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, 9573903 + ... + 9645769.

It is an arithmetic number, because the mean of its divisors is an integer number (50758356096).

Almost surely, 2690630083812 is an apocalyptic number.

It is an amenable number.

690630083812 is a deficient number, since it is larger than the sum of its proper divisors (527570462492).

690630083812 is a wasteful number, since it uses less digits than its factorization.

690630083812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90915 (or 90913 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 690630083812 in words is "six hundred ninety billion, six hundred thirty million, eighty-three thousand, eight hundred twelve".

Divisors: 1 2 4 127 254 508 18917 37834 71867 75668 143734 287468 2402459 4804918 9127109 9609836 18254218 36508436 1359508039 2719016078 5438032156 172657520953 345315041906 690630083812