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377641013 = 853442721
BaseRepresentation
bin10110100000100…
…101100000110101
3222022121011002012
4112200211200311
51233134003023
6101250054005
712233616131
oct2640454065
9868534065
10377641013
11184194312
12a657a305
1360313529
14382243c1
1523248978
hex16825835

377641013 has 4 divisors (see below), whose sum is σ = 378084588. Its totient is φ = 377197440.

The previous prime is 377641003. The next prime is 377641031. The reversal of 377641013 is 310146773.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310146773 = 617502669.

It can be written as a sum of positive squares in 2 ways, for example, as 12945604 + 364695409 = 3598^2 + 19097^2 .

It is a cyclic number.

It is not a de Polignac number, because 377641013 - 24 = 377640997 is a prime.

It is a super-2 number, since 2×3776410132 = 285225469399332338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (377641003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220508 + ... + 222213.

It is an arithmetic number, because the mean of its divisors is an integer number (94521147).

Almost surely, 2377641013 is an apocalyptic number.

It is an amenable number.

377641013 is a deficient number, since it is larger than the sum of its proper divisors (443575).

377641013 is an equidigital number, since it uses as much as digits as its factorization.

377641013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443574.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 377641013 is about 19432.9877527878. The cubic root of 377641013 is about 722.8137152890.

Adding to 377641013 its reverse (310146773), we get a palindrome (687787786).

The spelling of 377641013 in words is "three hundred seventy-seven million, six hundred forty-one thousand, thirteen".

Divisors: 1 853 442721 377641013