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23000142405 = 3512899118873
BaseRepresentation
bin10101011010111010…
…100101001001000101
32012100220211021221010
4111122322211021011
5334101014024110
614322140512433
71442651661522
oct253272451105
965326737833
1023000142405
119832a87459
12455a84b719
13222710bc26
141182928149
158e933c020
hex55aea5245

23000142405 has 16 divisors (see below), whose sum is σ = 36803390400. Its totient is φ = 12265688448.

The previous prime is 23000142377. The next prime is 23000142421. The reversal of 23000142405 is 50424100032.

It is not a de Polignac number, because 23000142405 - 28 = 23000142149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134049 + ... + 252921.

It is an arithmetic number, because the mean of its divisors is an integer number (2300211900).

Almost surely, 223000142405 is an apocalyptic number.

It is an amenable number.

23000142405 is a deficient number, since it is larger than the sum of its proper divisors (13803247995).

23000142405 is a wasteful number, since it uses less digits than its factorization.

23000142405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131780.

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 23000142405 its reverse (50424100032), we get a palindrome (73424242437).

The spelling of 23000142405 in words is "twenty-three billion, one hundred forty-two thousand, four hundred five".

Divisors: 1 3 5 15 12899 38697 64495 118873 193485 356619 594365 1783095 1533342827 4600028481 7666714135 23000142405