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103144138 = 279652811
BaseRepresentation
bin1100010010111…
…01101011001010
321012002021011021
412021131223022
5202401103023
614122423054
72361465526
oct611355312
9235067137
10103144138
1153249799
122a661a8a
13184a4946
14d9acd86
1590c635d
hex625daca

103144138 has 8 divisors (see below), whose sum is σ = 156674880. Its totient is φ = 50919180.

The previous prime is 103144127. The next prime is 103144159. The reversal of 103144138 is 831441301.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326248 + ... + 326563.

It is an arithmetic number, because the mean of its divisors is an integer number (19584360).

Almost surely, 2103144138 is an apocalyptic number.

103144138 is a deficient number, since it is larger than the sum of its proper divisors (53530742).

103144138 is an equidigital number, since it uses as much as digits as its factorization.

103144138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652892.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 103144138 is about 10155.9902520631. The cubic root of 103144138 is about 468.9733710405.

Adding to 103144138 its reverse (831441301), we get a palindrome (934585439).

The spelling of 103144138 in words is "one hundred three million, one hundred forty-four thousand, one hundred thirty-eight".

Divisors: 1 2 79 158 652811 1305622 51572069 103144138