Search a number
-
+
6928744988412 = 22331331181879523
BaseRepresentation
bin110010011010011100101…
…1000100011111011111100
3220112101022011002100021000
41210310321120203323330
51402010032204112122
622423004351210300
71313404521442512
oct144647130437374
926471264070230
106928744988412
112231511a06515
1293aa06816990
133b34bb198290
1419d4d2a904b2
15c0374d380ac
hex64d39623efc

6928744988412 has 192 divisors, whose sum is σ = 20079603281920. Its totient is φ = 2051748921600.

The previous prime is 6928744988411. The next prime is 6928744988413. The reversal of 6928744988412 is 2148894478296.

It is a happy number.

6928744988412 is a `hidden beast` number, since 6 + 9 + 2 + 87 + 44 + 98 + 8 + 412 = 666.

It is an interprime number because it is at equal distance from previous prime (6928744988411) and next prime (6928744988413).

It is a super-2 number, since 2×69287449884122 (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6928744988411) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7438083 + ... + 8317605.

Almost surely, 26928744988412 is an apocalyptic number.

6928744988412 is a gapful number since it is divisible by the number (62) 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 6928744988412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10039801640960).

6928744988412 is an abundant number, since it is smaller than the sum of its proper divisors (13150858293508).

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

6928744988412 is a wasteful number, since it uses less digits than its factorization.

6928744988412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879761 (or 879753 counting only the distinct ones).

The product of its digits is 445906944, while the sum is 72.

The spelling of 6928744988412 in words is "six trillion, nine hundred twenty-eight billion, seven hundred forty-four million, nine hundred eighty-eight thousand, four hundred twelve".