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103031413 = 1011020113
BaseRepresentation
bin1100010010000…
…10001001110101
321011212112112021
412021002021311
5202334001123
614120153141
72360516062
oct611021165
9234775467
10103031413
1153182031
122a6087b1
1318465544
14d97dc69
1590a2c5d
hex6242275

103031413 has 4 divisors (see below), whose sum is σ = 104051628. Its totient is φ = 102011200.

The previous prime is 103031393. The next prime is 103031419. The reversal of 103031413 is 314130301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 92121604 + 10909809 = 9598^2 + 3303^2 .

It is a cyclic number.

It is not a de Polignac number, because 103031413 - 25 = 103031381 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 (103031419) 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 3 ways as a sum of consecutive naturals, for example, 509956 + ... + 510157.

It is an arithmetic number, because the mean of its divisors is an integer number (26012907).

Almost surely, 2103031413 is an apocalyptic number.

It is an amenable number.

103031413 is a deficient number, since it is larger than the sum of its proper divisors (1020215).

103031413 is a wasteful number, since it uses less digits than its factorization.

103031413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020214.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 103031413 is about 10150.4390545434. The cubic root of 103031413 is about 468.8024636272.

Adding to 103031413 its reverse (314130301), we get a palindrome (417161714).

The spelling of 103031413 in words is "one hundred three million, thirty-one thousand, four hundred thirteen".

Divisors: 1 101 1020113 103031413