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381270430 = 2538127043
BaseRepresentation
bin10110101110011…
…011100110011110
3222120102112201001
4112232123212132
51240101123210
6101455540514
712306513412
oct2656334636
9876375631
10381270430
11186243132
12a782a73a
1360cb4508
14388cad42
152371403a
hex16b9b99e

381270430 has 8 divisors (see below), whose sum is σ = 686286792. Its totient is φ = 152508168.

The previous prime is 381270419. The next prime is 381270433. The reversal of 381270430 is 34072183.

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

It is a super-3 number, since 3×3812704303 (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381270433) 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, 19063512 + ... + 19063531.

It is an arithmetic number, because the mean of its divisors is an integer number (85785849).

Almost surely, 2381270430 is an apocalyptic number.

381270430 is a deficient number, since it is larger than the sum of its proper divisors (305016362).

381270430 is a wasteful number, since it uses less digits than its factorization.

381270430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38127050.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 381270430 is about 19526.1473414496. The cubic root of 381270430 is about 725.1219327221.

The spelling of 381270430 in words is "three hundred eighty-one million, two hundred seventy thousand, four hundred thirty".

Divisors: 1 2 5 10 38127043 76254086 190635215 381270430