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23305012037 = 174013418661
BaseRepresentation
bin10101101101000101…
…100100001101000101
32020011011111021102222
4111231011210031011
5340212040341122
614412311142125
71453343222336
oct255505441505
966134437388
1023305012037
11997a08752a
124624974945
132275323368
1411b120828d
15915eadb42
hex56d164345

23305012037 has 8 divisors (see below), whose sum is σ = 24737438232. Its totient is φ = 21879424000.

The previous prime is 23305012021. The next prime is 23305012043. The reversal of 23305012037 is 73021050332.

It can be written as a sum of positive squares in 4 ways, for example, as 13068833761 + 10236178276 = 114319^2 + 101174^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 23305012037 - 24 = 23305012021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23305011997 and 23305012015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23305015037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1702514 + ... + 1716147.

It is an arithmetic number, because the mean of its divisors is an integer number (3092179779).

Almost surely, 223305012037 is an apocalyptic number.

It is an amenable number.

23305012037 is a deficient number, since it is larger than the sum of its proper divisors (1432426195).

23305012037 is a wasteful number, since it uses less digits than its factorization.

23305012037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3419079.

The product of its (nonzero) digits is 3780, while the sum is 26.

Adding to 23305012037 its reverse (73021050332), we get a palindrome (96326062369).

The spelling of 23305012037 in words is "twenty-three billion, three hundred five million, twelve thousand, thirty-seven".

Divisors: 1 17 401 6817 3418661 58117237 1370883061 23305012037