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1993214690936 = 237159763222787
BaseRepresentation
bin11101000000010100110…
…110101000011001111000
321001112211120002102202222
4131000110312220121320
5230124100430102221
64123400432143212
7264001501220630
oct35002466503170
97045746072688
101993214690936
116a9354803747
1228236b697b08
13115c6188a4b1
146c68765b6c0
1536cac4709ab
hex1d014da8678

1993214690936 has 32 divisors (see below), whose sum is σ = 4271220243840. Its totient is φ = 854225686368.

The previous prime is 1993214690927. The next prime is 1993214690939. The reversal of 1993214690936 is 6390964123991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1993214690939) 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, 8835335 + ... + 9058121.

It is an arithmetic number, because the mean of its divisors is an integer number (133475632620).

Almost surely, 21993214690936 is an apocalyptic number.

It is an amenable number.

1993214690936 is an abundant number, since it is smaller than the sum of its proper divisors (2278005552904).

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

1993214690936 is a wasteful number, since it uses less digits than its factorization.

1993214690936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382563 (or 382559 counting only the distinct ones).

The product of its (nonzero) digits is 17006112, while the sum is 62.

The spelling of 1993214690936 in words is "one trillion, nine hundred ninety-three billion, two hundred fourteen million, six hundred ninety thousand, nine hundred thirty-six".

Divisors: 1 2 4 7 8 14 28 56 159763 222787 319526 445574 639052 891148 1118341 1278104 1559509 1782296 2236682 3119018 4473364 6238036 8946728 12476072 35593119481 71186238962 142372477924 249151836367 284744955848 498303672734 996607345468 1993214690936