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103031005 = 5711267613
BaseRepresentation
bin1100010010000…
…10000011011101
321011212111222011
412021002003131
5202333443010
614120151221
72360514640
oct611020335
9234774864
10103031005
11531817a0
122a608511
13184652bc
14d97da57
1590a2a8a
hex62420dd

103031005 has 16 divisors (see below), whose sum is σ = 154145664. Its totient is φ = 64226880.

The previous prime is 103030973. The next prime is 103031017. The reversal of 103031005 is 500130301.

It is not a de Polignac number, because 103031005 - 25 = 103030973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 133422 + ... + 134191.

It is an arithmetic number, because the mean of its divisors is an integer number (9634104).

Almost surely, 2103031005 is an apocalyptic number.

It is an amenable number.

103031005 is a deficient number, since it is larger than the sum of its proper divisors (51114659).

103031005 is a wasteful number, since it uses less digits than its factorization.

103031005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267636.

The product of its (nonzero) digits is 45, while the sum is 13.

The square root of 103031005 is about 10150.4189568707. The cubic root of 103031005 is about 468.8018448138.

Adding to 103031005 its reverse (500130301), we get a palindrome (603161306).

The spelling of 103031005 in words is "one hundred three million, thirty-one thousand, five".

Divisors: 1 5 7 11 35 55 77 385 267613 1338065 1873291 2943743 9366455 14718715 20606201 103031005