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689912374630 = 2568991237463
BaseRepresentation
bin10100000101000011111…
…10110110010101100110
32102221210011211221012111
422002201332312111212
542300420031442010
61244535200311234
7100562446266013
oct12024176662546
92387704757174
10689912374630
11246654605426
12b186231251a
135009b57c64b
142556b69270a
1512e2d68b58a
hexa0a1fb6566

689912374630 has 8 divisors (see below), whose sum is σ = 1241842274352. Its totient is φ = 275964949848.

The previous prime is 689912374583. The next prime is 689912374651. The reversal of 689912374630 is 36473219986.

It is a happy number.

689912374630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34495618722 + ... + 34495618741.

It is an arithmetic number, because the mean of its divisors is an integer number (155230284294).

Almost surely, 2689912374630 is an apocalyptic number.

689912374630 is a deficient number, since it is larger than the sum of its proper divisors (551929899722).

689912374630 is a wasteful number, since it uses less digits than its factorization.

689912374630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68991237470.

The product of its (nonzero) digits is 11757312, while the sum is 58.

The spelling of 689912374630 in words is "six hundred eighty-nine billion, nine hundred twelve million, three hundred seventy-four thousand, six hundred thirty".

Divisors: 1 2 5 10 68991237463 137982474926 344956187315 689912374630