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103031101 = 172356509
BaseRepresentation
bin1100010010000…
…10000100111101
321011212112002201
412021002010331
5202333443401
614120151501
72360515135
oct611020475
9234775081
10103031101
1153181878
122a608591
1318465364
14d97dac5
1590a2b01
hex624213d

103031101 has 6 divisors (see below), whose sum is σ = 109448570. Its totient is φ = 96970176.

The previous prime is 103031083. The next prime is 103031141. The reversal of 103031101 is 101130301.

It can be written as a sum of positive squares in 3 ways, for example, as 78765625 + 24265476 = 8875^2 + 4926^2 .

It is not a de Polignac number, because 103031101 - 27 = 103030973 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 (103031141) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 177966 + ... + 178543.

Almost surely, 2103031101 is an apocalyptic number.

It is an amenable number.

103031101 is a deficient number, since it is larger than the sum of its proper divisors (6417469).

103031101 is an equidigital number, since it uses as much as digits as its factorization.

103031101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356543 (or 356526 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 103031101 is about 10150.4236857384. The cubic root of 103031101 is about 468.8019904171.

Adding to 103031101 its reverse (101130301), we get a palindrome (204161402).

It can be divided in two parts, 1030 and 31101, that added together give a triangular number (32131 = T253).

The spelling of 103031101 in words is "one hundred three million, thirty-one thousand, one hundred one".

Divisors: 1 17 289 356509 6060653 103031101