Search a number
-
+
378857130207 = 3251503130319
BaseRepresentation
bin1011000001101011010…
…01010000100011011111
31100012220012112022010020
411200311221100203133
522201344411131312
6450013343043223
736241301321133
oct5406551204337
91305805468106
10378857130207
11136743a78396
12615125a0513
1329959252bba
14144a01bd3c3
159cc567978c
hex5835a508df

378857130207 has 8 divisors (see below), whose sum is σ = 507155362560. Its totient is φ = 251565159000.

The previous prime is 378857130191. The next prime is 378857130257. The reversal of 378857130207 is 702031758873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 378857130207 - 24 = 378857130191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 378857130207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378857130257) 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 7 ways as a sum of consecutive naturals, for example, 251564407 + ... + 251565912.

It is an arithmetic number, because the mean of its divisors is an integer number (63394420320).

Almost surely, 2378857130207 is an apocalyptic number.

378857130207 is a deficient number, since it is larger than the sum of its proper divisors (128298232353).

378857130207 is a wasteful number, since it uses less digits than its factorization.

378857130207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503130573.

The product of its (nonzero) digits is 1975680, while the sum is 51.

The spelling of 378857130207 in words is "three hundred seventy-eight billion, eight hundred fifty-seven million, one hundred thirty thousand, two hundred seven".

Divisors: 1 3 251 753 503130319 1509390957 126285710069 378857130207