Search a number
-
+
381871414 = 21571216151
BaseRepresentation
bin10110110000101…
…110010100110110
3222121120002002201
4112300232110312
51240224341124
6101520455114
712314565511
oct2660562466
9877502081
10381871414
11186613711
12a7a7a49a
1361164c22
1438a05d78
15237d2144
hex16c2e536

381871414 has 8 divisors (see below), whose sum is σ = 576456048. Its totient is φ = 189719400.

The previous prime is 381871411. The next prime is 381871421. The reversal of 381871414 is 414178183.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381871411) 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, 607762 + ... + 608389.

It is an arithmetic number, because the mean of its divisors is an integer number (72057006).

Almost surely, 2381871414 is an apocalyptic number.

381871414 is a deficient number, since it is larger than the sum of its proper divisors (194584634).

381871414 is a wasteful number, since it uses less digits than its factorization.

381871414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216310.

The product of its digits is 21504, while the sum is 37.

The square root of 381871414 is about 19541.5304927736. The cubic root of 381871414 is about 725.5027279736.

It can be divided in two parts, 38187 and 1414, that added together give a square (39601 = 1992).

The spelling of 381871414 in words is "three hundred eighty-one million, eight hundred seventy-one thousand, four hundred fourteen".

Divisors: 1 2 157 314 1216151 2432302 190935707 381871414