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23725612193 = 157212970981
BaseRepresentation
bin10110000110001010…
…000001110010100001
32021020110220222101112
4112012022001302201
5342042224042233
614522134113105
71466641243013
oct260612016241
967213828345
1023725612193
11a075542668
1247217ab795
1323114c82aa
1412110121b3
1593cd91048
hex586281ca1

23725612193 has 8 divisors (see below), whose sum is σ = 23888282280. Its totient is φ = 23563088640.

The previous prime is 23725612181. The next prime is 23725612201. The reversal of 23725612193 is 39121652732.

It can be written as a sum of positive squares in 4 ways, for example, as 5319805969 + 18405806224 = 72937^2 + 135668^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23725612193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23725612193.

It is not an unprimeable number, because it can be changed into a prime (23725614193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298763 + ... + 369743.

It is an arithmetic number, because the mean of its divisors is an integer number (2986035285).

Almost surely, 223725612193 is an apocalyptic number.

It is an amenable number.

23725612193 is a deficient number, since it is larger than the sum of its proper divisors (162670087).

23725612193 is a wasteful number, since it uses less digits than its factorization.

23725612193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73267.

The product of its digits is 136080, while the sum is 41.

The spelling of 23725612193 in words is "twenty-three billion, seven hundred twenty-five million, six hundred twelve thousand, one hundred ninety-three".

Divisors: 1 157 2129 70981 334253 11144017 151118549 23725612193