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20714384208 = 2437499123547
BaseRepresentation
bin10011010010101011…
…000110101101010000
31222110121202202011010
4103102223012231100
5314410340243313
613303245050520
71332215234460
oct232253065520
958417682133
1020714384208
11886a8034a1
124021256a40
131c516b229b
141007125ba0
158138304c3
hex4d2ac6b50

20714384208 has 80 divisors (see below), whose sum is σ = 61279808000. Its totient is φ = 5906487168.

The previous prime is 20714384191. The next prime is 20714384263. The reversal of 20714384208 is 80248341702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105891 + ... + 229437.

It is an arithmetic number, because the mean of its divisors is an integer number (765997600).

Almost surely, 220714384208 is an apocalyptic number.

20714384208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20714384208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30639904000).

20714384208 is an abundant number, since it is smaller than the sum of its proper divisors (40565423792).

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

20714384208 is a wasteful number, since it uses less digits than its factorization.

20714384208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124064 (or 124058 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The spelling of 20714384208 in words is "twenty billion, seven hundred fourteen million, three hundred eighty-four thousand, two hundred eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 499 998 1497 1996 2994 3493 3992 5988 6986 7984 10479 11976 13972 20958 23952 27944 41916 55888 83832 123547 167664 247094 370641 494188 741282 864829 988376 1482564 1729658 1976752 2594487 2965128 3459316 5188974 5930256 6918632 10377948 13837264 20755896 41511792 61649953 123299906 184949859 246599812 369899718 431549671 493199624 739799436 863099342 986399248 1294649013 1479598872 1726198684 2589298026 2959197744 3452397368 5178596052 6904794736 10357192104 20714384208