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2102130141 = 3700710047
BaseRepresentation
bin111110101001011…
…1111010111011101
312102111112021102220
41331102333113131
513301121131031
6544331535553
7103043545206
oct17522772735
95374467386
102102130141
11989663541
124a7bba5b9
132766855b7
1415d2825ad
15c4838596
hex7d4bf5dd

2102130141 has 4 divisors (see below), whose sum is σ = 2802840192. Its totient is φ = 1401420092.

The previous prime is 2102130139. The next prime is 2102130161. The reversal of 2102130141 is 1410312012.

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.

It is a cyclic number.

It is not a de Polignac number, because 2102130141 - 21 = 2102130139 is a prime.

It is a super-2 number, since 2×21021301412 = 8837902259401359762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2102130141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102130161) 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, 350355021 + ... + 350355026.

It is an arithmetic number, because the mean of its divisors is an integer number (700710048).

Almost surely, 22102130141 is an apocalyptic number.

It is an amenable number.

2102130141 is a deficient number, since it is larger than the sum of its proper divisors (700710051).

2102130141 is an equidigital number, since it uses as much as digits as its factorization.

2102130141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700710050.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2102130141 is about 45848.9928024597. The cubic root of 2102130141 is about 1281.0120050479.

Adding to 2102130141 its reverse (1410312012), we get a palindrome (3512442153).

The spelling of 2102130141 in words is "two billion, one hundred two million, one hundred thirty thousand, one hundred forty-one".

Divisors: 1 3 700710047 2102130141