Search a number
-
+
7900100010101 = 13607700000777
BaseRepresentation
bin111001011110110001010…
…1001111010000001110101
31000222020112112221002200102
41302331202221322001311
52013413401100310401
624445131132323445
71443522562054325
oct162754251720165
930866475832612
107900100010101
112576460556212
12a77113613585
13453c8ca2c9c0
141d451ca13285
15da7768d356b
hex72f62a7a075

7900100010101 has 4 divisors (see below), whose sum is σ = 8507800010892. Its totient is φ = 7292400009312.

The previous prime is 7900100010043. The next prime is 7900100010109. The reversal of 7900100010101 is 1010100010097.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 666878023876 + 7233221986225 = 816626^2 + 2689465^2 .

It is a cyclic number.

It is not a de Polignac number, because 7900100010101 - 222 = 7900095815797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7900100010109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303850000376 + ... + 303850000401.

It is an arithmetic number, because the mean of its divisors is an integer number (2126950002723).

Almost surely, 27900100010101 is an apocalyptic number.

It is an amenable number.

7900100010101 is a deficient number, since it is larger than the sum of its proper divisors (607700000791).

7900100010101 is a wasteful number, since it uses less digits than its factorization.

7900100010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607700000790.

The product of its (nonzero) digits is 63, while the sum is 20.

Adding to 7900100010101 its reverse (1010100010097), we get a palindrome (8910200020198).

The spelling of 7900100010101 in words is "seven trillion, nine hundred billion, one hundred million, ten thousand, one hundred one".

Divisors: 1 13 607700000777 7900100010101