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388605038 = 2397489427
BaseRepresentation
bin10111001010011…
…010010001101110
31000002020011220012
4113022122101232
51243440330123
6102321053222
712426042203
oct2712322156
91002204805
10388605038
1118a3a2798
12aa187212
1362681b13
1439879caa
15241b2378
hex1729a46e

388605038 has 8 divisors (see below), whose sum is σ = 584377032. Its totient is φ = 193812696.

The previous prime is 388605037. The next prime is 388605047. The reversal of 388605038 is 830506883.

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

It is a junction number, because it is equal to n+sod(n) for n = 388604986 and 388605004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388605037) 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, 243920 + ... + 245507.

It is an arithmetic number, because the mean of its divisors is an integer number (73047129).

Almost surely, 2388605038 is an apocalyptic number.

388605038 is a deficient number, since it is larger than the sum of its proper divisors (195771994).

388605038 is a wasteful number, since it uses less digits than its factorization.

388605038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489826.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 388605038 is about 19713.0676963277. The cubic root of 388605038 is about 729.7422233654.

The spelling of 388605038 in words is "three hundred eighty-eight million, six hundred five thousand, thirty-eight".

Divisors: 1 2 397 794 489427 978854 194302519 388605038