Search a number
-
+
641107376147 = 72107169971971
BaseRepresentation
bin10010101010001001111…
…10100011100000010011
32021021210212122010111002
421111010332203200103
541000441442014042
61210304244012215
764214144532500
oct11250476434023
92237725563432
10641107376147
1122798a444737
12a430169106b
13485c1273c14
142305b9504a7
1511a23b96132
hex9544fa3813

641107376147 has 24 divisors (see below), whose sum is σ = 753201374400. Its totient is φ = 544056927120.

The previous prime is 641107376093. The next prime is 641107376269. The reversal of 641107376147 is 741673701146.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-641107376147 is a prime.

It is a super-2 number, since 2×6411073761472 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (641107376947) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8871872 + ... + 8943842.

It is an arithmetic number, because the mean of its divisors is an integer number (31383390600).

Almost surely, 2641107376147 is an apocalyptic number.

641107376147 is a deficient number, since it is larger than the sum of its proper divisors (112093998253).

641107376147 is a wasteful number, since it uses less digits than its factorization.

641107376147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73791 (or 73784 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 47.

The spelling of 641107376147 in words is "six hundred forty-one billion, one hundred seven million, three hundred seventy-six thousand, one hundred forty-seven".

Divisors: 1 7 49 107 749 1699 5243 11893 71971 83251 181793 503797 1272551 3526579 7700897 8907857 53906279 122278729 377343953 855951103 5991657721 13083824003 91586768021 641107376147