Search a number
-
+
2101412143 = 171734091747
BaseRepresentation
bin111110101000001…
…0000000100101111
312102110011210112101
41331100100010233
513300430142033
6544304315531
7103034465005
oct17520200457
95373153471
102101412143
11989213056
124a7912ba7
1327649384c
1415d136a75
15c474597d
hex7d41012f

2101412143 has 16 divisors (see below), whose sum is σ = 2244641760. Its totient is φ = 1960436736.

The previous prime is 2101412111. The next prime is 2101412153. The reversal of 2101412143 is 3412141012.

It is not a de Polignac number, because 2101412143 - 25 = 2101412111 is a prime.

It is an alternating number because its digits alternate between even and odd.

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 2101412143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101412153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1201996 + ... + 1203742.

It is an arithmetic number, because the mean of its divisors is an integer number (140290110).

Almost surely, 22101412143 is an apocalyptic number.

2101412143 is a deficient number, since it is larger than the sum of its proper divisors (143229617).

2101412143 is a wasteful number, since it uses less digits than its factorization.

2101412143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2346.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 2101412143 is about 45841.1621035069. The cubic root of 2101412143 is about 1280.8661420846.

Adding to 2101412143 its reverse (3412141012), we get a palindrome (5513553155).

The spelling of 2101412143 in words is "two billion, one hundred one million, four hundred twelve thousand, one hundred forty-three".

Divisors: 1 17 173 409 1747 2941 6953 29699 70757 302231 714523 1202869 5137927 12146891 123612479 2101412143