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103388407 = 176081671
BaseRepresentation
bin1100010100110…
…01010011110111
321012112200020021
412022121103313
5202431412112
614131550011
72363533633
oct612312367
9235480207
10103388407
11533a6271
122a75b307
131855bb95
14da33dc3
159123907
hex62994f7

103388407 has 4 divisors (see below), whose sum is σ = 109470096. Its totient is φ = 97306720.

The previous prime is 103388401. The next prime is 103388447. The reversal of 103388407 is 704883301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704883301 = 3122738171.

It is a cyclic number.

It is not a de Polignac number, because 103388407 - 211 = 103386359 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 (103388401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3040819 + ... + 3040852.

It is an arithmetic number, because the mean of its divisors is an integer number (27367524).

Almost surely, 2103388407 is an apocalyptic number.

103388407 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

103388407 is a deficient number, since it is larger than the sum of its proper divisors (6081689).

103388407 is an equidigital number, since it uses as much as digits as its factorization.

103388407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6081688.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 103388407 is about 10168.0089988158. The cubic root of 103388407 is about 469.3432913805.

The spelling of 103388407 in words is "one hundred three million, three hundred eighty-eight thousand, four hundred seven".

Divisors: 1 17 6081671 103388407