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384754139 = 71116729921
BaseRepresentation
bin10110111011101…
…110000111011011
3222210222112110022
4112323232013123
51241444113024
6102102341055
712351233120
oct2673560733
9883875408
10384754139
11188202530
12a8a2a78b
1361934093
1439156747
1523ba135e
hex16eee1db

384754139 has 16 divisors (see below), whose sum is σ = 482582016. Its totient is φ = 298003200.

The previous prime is 384754129. The next prime is 384754151. The reversal of 384754139 is 931457483.

It is not a de Polignac number, because 384754139 - 212 = 384750043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 384754139.

It is not an unprimeable number, because it can be changed into a prime (384754129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2102 + ... + 27819.

It is an arithmetic number, because the mean of its divisors is an integer number (30161376).

Almost surely, 2384754139 is an apocalyptic number.

384754139 is a deficient number, since it is larger than the sum of its proper divisors (97827877).

384754139 is a wasteful number, since it uses less digits than its factorization.

384754139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30106.

The product of its digits is 362880, while the sum is 44.

The square root of 384754139 is about 19615.1507513962. The cubic root of 384754139 is about 727.3237459517.

The spelling of 384754139 in words is "three hundred eighty-four million, seven hundred fifty-four thousand, one hundred thirty-nine".

Divisors: 1 7 11 77 167 1169 1837 12859 29921 209447 329131 2303917 4996807 34977649 54964877 384754139