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190648103 = 281678463
BaseRepresentation
bin10110101110100…
…00111100100111
3111021201221000212
423113100330213
5342301214403
630530130035
74503324242
oct1327207447
9437657025
10190648103
1198685818
1253a2091b
1330661739
141b46a259
1511b0d4d8
hexb5d0f27

190648103 has 4 divisors (see below), whose sum is σ = 191326848. Its totient is φ = 189969360.

The previous prime is 190648097. The next prime is 190648141. The reversal of 190648103 is 301846091.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301846091 = 2003150697.

It is a cyclic number.

It is not a de Polignac number, because 190648103 - 214 = 190631719 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 190648103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190648903) 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, 338951 + ... + 339512.

It is an arithmetic number, because the mean of its divisors is an integer number (47831712).

Almost surely, 2190648103 is an apocalyptic number.

190648103 is a deficient number, since it is larger than the sum of its proper divisors (678745).

190648103 is an equidigital number, since it uses as much as digits as its factorization.

190648103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678744.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 190648103 is about 13807.5379050720. The cubic root of 190648103 is about 575.5426287797.

The spelling of 190648103 in words is "one hundred ninety million, six hundred forty-eight thousand, one hundred three".

Divisors: 1 281 678463 190648103