Search a number
-
+
2139437937 = 371331733463
BaseRepresentation
bin111111110000101…
…0011101101110001
312112002201201010010
41333201103231301
513340144003222
6552143325133
7104005631250
oct17741235561
95462651103
102139437937
119a872542a
124b85b07a9
13281318910
141641d4797
15c7c5780c
hex7f853b71

2139437937 has 64 divisors (see below), whose sum is σ = 3674832896. Its totient is φ = 1076820480.

The previous prime is 2139437899. The next prime is 2139437941. The reversal of 2139437937 is 7397349312.

It is not a de Polignac number, because 2139437937 - 26 = 2139437873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2139437977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 616068 + ... + 619530.

It is an arithmetic number, because the mean of its divisors is an integer number (57419264).

Almost surely, 22139437937 is an apocalyptic number.

It is an amenable number.

2139437937 is a deficient number, since it is larger than the sum of its proper divisors (1535394959).

2139437937 is a wasteful number, since it uses less digits than its factorization.

2139437937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3590.

The product of its digits is 857304, while the sum is 48.

The square root of 2139437937 is about 46254.0586003001. The cubic root of 2139437937 is about 1288.5459121963.

The spelling of 2139437937 in words is "two billion, one hundred thirty-nine million, four hundred thirty-seven thousand, nine hundred thirty-seven".

Divisors: 1 3 7 13 21 31 39 73 91 93 217 219 273 403 511 651 949 1209 1533 2263 2821 2847 3463 6643 6789 8463 10389 15841 19929 24241 29419 45019 47523 72723 88257 107353 135057 205933 252799 315133 322059 617799 751471 758397 945399 1395589 1769593 2254413 3286387 4186767 5308779 7836769 9769123 9859161 23004709 23510307 29307369 54857383 69014127 101877997 164572149 305633991 713145979 2139437937