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141388385 = 5101279977
BaseRepresentation
bin10000110110101…
…10101001100001
3100212001021101212
420123112221201
5242143412020
622010235505
73334532015
oct1033265141
9325037355
10141388385
11728a0206
123b425b95
13233a5288
1414ac6545
15c62ccc5
hex86d6a61

141388385 has 8 divisors (see below), whose sum is σ = 171346536. Its totient is φ = 111990400.

The previous prime is 141388381. The next prime is 141388411. The reversal of 141388385 is 583883141.

It can be written as a sum of positive squares in 4 ways, for example, as 54302161 + 87086224 = 7369^2 + 9332^2 .

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

It is not a de Polignac number, because 141388385 - 22 = 141388381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (141388381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139484 + ... + 140493.

It is an arithmetic number, because the mean of its divisors is an integer number (21418317).

Almost surely, 2141388385 is an apocalyptic number.

It is an amenable number.

141388385 is a deficient number, since it is larger than the sum of its proper divisors (29958151).

141388385 is a wasteful number, since it uses less digits than its factorization.

141388385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280083.

The product of its digits is 92160, while the sum is 41.

The square root of 141388385 is about 11890.6847994554. The cubic root of 141388385 is about 520.9602387861.

It can be divided in two parts, 1413 and 88385, that added together give a palindrome (89798).

The spelling of 141388385 in words is "one hundred forty-one million, three hundred eighty-eight thousand, three hundred eighty-five".

Divisors: 1 5 101 505 279977 1399885 28277677 141388385