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23123002305 = 3513388930491
BaseRepresentation
bin10101100010001111…
…010000001111000001
32012200111000020000210
4111202033100033001
5334323442033210
614342250104333
71446003163614
oct254217201701
965614006023
1023123002305
119896371967
124593a1b0a9
1322466c77b0
141194d8a17b
15905009e20
hex5623d03c1

23123002305 has 32 divisors (see below), whose sum is σ = 39854263680. Its totient is φ = 11380331520.

The previous prime is 23123002291. The next prime is 23123002313. The reversal of 23123002305 is 50320032132.

It is not a de Polignac number, because 23123002305 - 24 = 23123002289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 743110 + ... + 773600.

It is an arithmetic number, because the mean of its divisors is an integer number (1245445740).

Almost surely, 223123002305 is an apocalyptic number.

It is an amenable number.

23123002305 is a deficient number, since it is larger than the sum of its proper divisors (16731261375).

23123002305 is a wasteful number, since it uses less digits than its factorization.

23123002305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34401.

The product of its (nonzero) digits is 1080, while the sum is 21.

Adding to 23123002305 its reverse (50320032132), we get a palindrome (73443034437).

The spelling of 23123002305 in words is "twenty-three billion, one hundred twenty-three million, two thousand, three hundred five".

Divisors: 1 3 5 13 15 39 65 195 3889 11667 19445 30491 50557 58335 91473 151671 152455 252785 396383 457365 758355 1189149 1981915 5945745 118579499 355738497 592897495 1541533487 1778692485 4624600461 7707667435 23123002305