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103142311 = 101210111
BaseRepresentation
bin1100010010111…
…01001110100111
321012002011122121
412021131032213
5202401023221
614122410411
72361460306
oct611351647
9235064577
10103142311
1153248388
122a660a07
13184a3b6c
14d9ac43d
1590c5a41
hex625d3a7

103142311 has 6 divisors (see below), whose sum is σ = 104183936. Its totient is φ = 102111000.

The previous prime is 103142227. The next prime is 103142323. The reversal of 103142311 is 113241301.

It is not a de Polignac number, because 103142311 - 29 = 103141799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103142341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5146 + ... + 15256.

Almost surely, 2103142311 is an apocalyptic number.

103142311 is a deficient number, since it is larger than the sum of its proper divisors (1041625).

103142311 is an equidigital number, since it uses as much as digits as its factorization.

103142311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10313 (or 10212 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 103142311 is about 10155.9003047490. The cubic root of 103142311 is about 468.9706020371.

Adding to 103142311 its reverse (113241301), we get a palindrome (216383612).

The spelling of 103142311 in words is "one hundred three million, one hundred forty-two thousand, three hundred eleven".

Divisors: 1 101 10111 10201 1021211 103142311