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381730414 = 21314681939
BaseRepresentation
bin10110110000001…
…011111001101110
3222121021220200111
4112300023321232
51240210333124
6101513450234
712313440442
oct2660137156
9877256614
10381730414
1118652778a
12a7a1097a
13611159b0
14389aa822
15237a5494
hex16c0be6e

381730414 has 8 divisors (see below), whose sum is σ = 616641480. Its totient is φ = 176183256.

The previous prime is 381730411. The next prime is 381730421. The reversal of 381730414 is 414037183.

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

It is a super-2 number, since 2×3817304142 = 291436217945222792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381730411) 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, 7340944 + ... + 7340995.

It is an arithmetic number, because the mean of its divisors is an integer number (77080185).

Almost surely, 2381730414 is an apocalyptic number.

381730414 is a deficient number, since it is larger than the sum of its proper divisors (234911066).

381730414 is a wasteful number, since it uses less digits than its factorization.

381730414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14681954.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 381730414 is about 19537.9224586444. The cubic root of 381730414 is about 725.4134234993.

Adding to 381730414 its reverse (414037183), we get a palindrome (795767597).

The spelling of 381730414 in words is "three hundred eighty-one million, seven hundred thirty thousand, four hundred fourteen".

Divisors: 1 2 13 26 14681939 29363878 190865207 381730414