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20130123023102 = 216965759325943
BaseRepresentation
bin1001001001110111010001…
…10101010000001011111110
32122021102100212212222020202
410210323220311100023332
510114302442443214402
6110451352330043502
74145232133331111
oct444735065201376
978242325788222
1020130123023102
116461156723254
122311429579592
13b303548004b1
144d8435bcc578
1524d96d8eab02
hex124ee8d502fe

20130123023102 has 8 divisors (see below), whose sum is σ = 30195363021456. Its totient is φ = 10065002015952.

The previous prime is 20130123023083. The next prime is 20130123023207. The reversal of 20130123023102 is 20132032103102.

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

It is a congruent number.

It is an unprimeable number.

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, 29323658 + ... + 30002285.

It is an arithmetic number, because the mean of its divisors is an integer number (3774420377682).

Almost surely, 220130123023102 is an apocalyptic number.

20130123023102 is a deficient number, since it is larger than the sum of its proper divisors (10065239998354).

20130123023102 is a wasteful number, since it uses less digits than its factorization.

20130123023102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59495602.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20130123023102 its reverse (20132032103102), we get a palindrome (40262155126204).

The spelling of 20130123023102 in words is "twenty trillion, one hundred thirty billion, one hundred twenty-three million, twenty-three thousand, one hundred two".

Divisors: 1 2 169657 339314 59325943 118651886 10065061511551 20130123023102