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23161289375 = 5473108041
BaseRepresentation
bin10101100100100001…
…010011101010011111
32012210011001102000102
4111210201103222133
5334413242230000
614350134451315
71446646466000
oct254441235237
965704042012
1023161289375
119905a42574
1245a4803b3b
132251611773
14119a0b51a7
1590856e3d5
hex564853a9f

23161289375 has 40 divisors (see below), whose sum is σ = 33752320800. Its totient is φ = 15881880000.

The previous prime is 23161289369. The next prime is 23161289381. The reversal of 23161289375 is 57398216132.

It is an interprime number because it is at equal distance from previous prime (23161289369) and next prime (23161289381).

It is not a de Polignac number, because 23161289375 - 220 = 23160240799 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 160355 + ... + 268395.

It is an arithmetic number, because the mean of its divisors is an integer number (843808020).

Almost surely, 223161289375 is an apocalyptic number.

23161289375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23161289375 is a deficient number, since it is larger than the sum of its proper divisors (10591031425).

23161289375 is an frugal number, since it uses more digits than its factorization.

23161289375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108082 (or 108053 counting only the distinct ones).

The product of its digits is 544320, while the sum is 47.

The spelling of 23161289375 in words is "twenty-three billion, one hundred sixty-one million, two hundred eighty-nine thousand, three hundred seventy-five".

Divisors: 1 5 7 25 35 49 125 175 245 343 625 875 1225 1715 4375 6125 8575 30625 42875 108041 214375 540205 756287 2701025 3781435 5294009 13505125 18907175 26470045 37058063 67525625 94535875 132350225 185290315 472679375 661751125 926451575 3308755625 4632257875 23161289375