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103112201 = 947108883
BaseRepresentation
bin1100010010101…
…01111000001001
321012000122100102
412021111320021
5202344042301
614122015145
72361303443
oct611257011
9235018312
10103112201
11532277a5
122a6474b5
131849324a
14d9a1493
1590bbb6b
hex6255e09

103112201 has 4 divisors (see below), whose sum is σ = 103222032. Its totient is φ = 103002372.

The previous prime is 103112179. The next prime is 103112203. The reversal of 103112201 is 102211301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102211301 = 432377007.

It is a cyclic number.

It is not a de Polignac number, because 103112201 - 26 = 103112137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103112203) 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, 53495 + ... + 55388.

It is an arithmetic number, because the mean of its divisors is an integer number (25805508).

Almost surely, 2103112201 is an apocalyptic number.

It is an amenable number.

103112201 is a deficient number, since it is larger than the sum of its proper divisors (109831).

103112201 is an equidigital number, since it uses as much as digits as its factorization.

103112201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109830.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 103112201 is about 10154.4178070434. The cubic root of 103112201 is about 468.9249625739.

Adding to 103112201 its reverse (102211301), we get a palindrome (205323502).

The spelling of 103112201 in words is "one hundred three million, one hundred twelve thousand, two hundred one".

Divisors: 1 947 108883 103112201