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381712030 = 2575453029
BaseRepresentation
bin10110110000000…
…111011010011110
3222121020222110121
4112300013122132
51240204241110
6101513225154
712313333030
oct2660073236
9877228417
10381712030
11186514997
12a7a021ba
136110a50b
14389a3c50
152379ecda
hex16c0769e

381712030 has 16 divisors (see below), whose sum is σ = 785236320. Its totient is φ = 130872672.

The previous prime is 381712013. The next prime is 381712043. The reversal of 381712030 is 30217183.

It is a junction number, because it is equal to n+sod(n) for n = 381711986 and 381712004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2726445 + ... + 2726584.

It is an arithmetic number, because the mean of its divisors is an integer number (49077270).

Almost surely, 2381712030 is an apocalyptic number.

381712030 is an abundant number, since it is smaller than the sum of its proper divisors (403524290).

381712030 is a wasteful number, since it uses less digits than its factorization.

381712030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5453043.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 381712030 is about 19537.4519833063. The cubic root of 381712030 is about 725.4017780955.

The spelling of 381712030 in words is "three hundred eighty-one million, seven hundred twelve thousand, thirty".

Divisors: 1 2 5 7 10 14 35 70 5453029 10906058 27265145 38171203 54530290 76342406 190856015 381712030