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103542401 = 557185893
BaseRepresentation
bin1100010101111…
…10111010000001
321012211111110202
412022332322001
5203001324101
614135134545
72365044614
oct612767201
9235744422
10103542401
11534a0a36
122a814455
13185b3cc1
14da7417b
15915436b
hex62bee81

103542401 has 4 divisors (see below), whose sum is σ = 103728852. Its totient is φ = 103355952.

The previous prime is 103542379. The next prime is 103542407. The reversal of 103542401 is 104245301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104245301 = 269387529.

It can be written as a sum of positive squares in 2 ways, for example, as 20295025 + 83247376 = 4505^2 + 9124^2 .

It is a cyclic number.

It is not a de Polignac number, because 103542401 - 222 = 99348097 is a prime.

It is a super-3 number, since 3×1035424013 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103542407) 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, 92390 + ... + 93503.

It is an arithmetic number, because the mean of its divisors is an integer number (25932213).

Almost surely, 2103542401 is an apocalyptic number.

It is an amenable number.

103542401 is a deficient number, since it is larger than the sum of its proper divisors (186451).

103542401 is an equidigital number, since it uses as much as digits as its factorization.

103542401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186450.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 103542401 is about 10175.5786567644. The cubic root of 103542401 is about 469.5762001376.

Adding to 103542401 its reverse (104245301), we get a palindrome (207787702).

The spelling of 103542401 in words is "one hundred three million, five hundred forty-two thousand, four hundred one".

Divisors: 1 557 185893 103542401