Search a number
-
+
381437186107 = 3195711935951
BaseRepresentation
bin1011000110011110110…
…11011001000000111011
31100110120000100201110011
411203033123121000323
522222140404423412
6451121350402351
736362240405035
oct5431733310073
91313500321404
10381437186107
1113784839059a
1261b126603b7
1329c7a931cb3
1414666b0cc55
159dc6e1a7a7
hex58cf6d903b

381437186107 has 4 divisors (see below), whose sum is σ = 381449154016. Its totient is φ = 381425218200.

The previous prime is 381437186101. The next prime is 381437186111. The reversal of 381437186107 is 701681734183.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 381437186107 - 219 = 381436661819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381437186101) 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, 5936019 + ... + 5999932.

It is an arithmetic number, because the mean of its divisors is an integer number (95362288504).

Almost surely, 2381437186107 is an apocalyptic number.

381437186107 is a deficient number, since it is larger than the sum of its proper divisors (11967909).

381437186107 is a wasteful number, since it uses less digits than its factorization.

381437186107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11967908.

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 381437186107 in words is "three hundred eighty-one billion, four hundred thirty-seven million, one hundred eighty-six thousand, one hundred seven".

Divisors: 1 31957 11935951 381437186107