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2100123413 = 71199914797
BaseRepresentation
bin111110100101101…
…0101011100010101
312102100202022201122
41331023111130111
513300112422123
6544220533325
7103020516533
oct17513253425
95370668648
102100123413
11988512893
124a73b1245
1327613209b
1415ccbd153
15c458dbc8
hex7d2d5715

2100123413 has 8 divisors (see below), whose sum is σ = 2130912000. Its totient is φ = 2069368560.

The previous prime is 2100123379. The next prime is 2100123437. The reversal of 2100123413 is 3143210012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2100123413 - 212 = 2100119317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100123391 and 2100123400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100123013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134531 + ... + 149327.

It is an arithmetic number, because the mean of its divisors is an integer number (266364000).

Almost surely, 22100123413 is an apocalyptic number.

It is an amenable number.

2100123413 is a deficient number, since it is larger than the sum of its proper divisors (30788587).

2100123413 is a wasteful number, since it uses less digits than its factorization.

2100123413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16867.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2100123413 is about 45827.1034759999. The cubic root of 2100123413 is about 1280.6042502289.

Adding to 2100123413 its reverse (3143210012), we get a palindrome (5243333425).

The spelling of 2100123413 in words is "two billion, one hundred million, one hundred twenty-three thousand, four hundred thirteen".

Divisors: 1 71 1999 14797 141929 1050587 29579203 2100123413