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380938242 = 23537391621
BaseRepresentation
bin10110101101001…
…010100000000010
3222112210200000210
4112231022200002
51240010010432
6101444454550
712303631056
oct2655124002
9875720023
10380938242
111860365a3
12a76aa456
1360bc9259
1438841c66
152369a8cc
hex16b4a802

380938242 has 32 divisors (see below), whose sum is σ = 777781440. Its totient is φ = 124338240.

The previous prime is 380938241. The next prime is 380938267. The reversal of 380938242 is 242839083.

It is a super-2 number, since 2×3809382422 = 290227888436101128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 380938242.

It is not an unprimeable number, because it can be changed into a prime (380938241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234192 + ... + 235812.

It is an arithmetic number, because the mean of its divisors is an integer number (24305670).

Almost surely, 2380938242 is an apocalyptic number.

380938242 is an abundant number, since it is smaller than the sum of its proper divisors (396843198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

380938242 is a wasteful number, since it uses less digits than its factorization.

380938242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 380938242 is about 19517.6392527375. The cubic root of 380938242 is about 724.9112801464.

The spelling of 380938242 in words is "three hundred eighty million, nine hundred thirty-eight thousand, two hundred forty-two".

Divisors: 1 2 3 6 53 106 159 318 739 1478 1621 2217 3242 4434 4863 9726 39167 78334 85913 117501 171826 235002 257739 515478 1197919 2395838 3593757 7187514 63489707 126979414 190469121 380938242