Search a number
-
+
23828100085 = 537128800541
BaseRepresentation
bin10110001100010000…
…111111001111110101
32021111121202220100101
4112030100333033311
5342244443200320
614540234514101
71502324336356
oct261420771765
967447686311
1023828100085
11a1183832a9
12474bb95931
13232980030a
14122088dd2d
15946d87c0a
hex58c43f3f5

23828100085 has 8 divisors (see below), whose sum is σ = 29366523576. Its totient is φ = 18547277760.

The previous prime is 23828100041. The next prime is 23828100113. The reversal of 23828100085 is 58000182832.

It can be written as a sum of positive squares in 4 ways, for example, as 11911976164 + 11916123921 = 109142^2 + 109161^2 .

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

It is not a de Polignac number, because 23828100085 - 215 = 23828067317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64400086 + ... + 64400455.

It is an arithmetic number, because the mean of its divisors is an integer number (3670815447).

Almost surely, 223828100085 is an apocalyptic number.

It is an amenable number.

23828100085 is a deficient number, since it is larger than the sum of its proper divisors (5538423491).

23828100085 is a wasteful number, since it uses less digits than its factorization.

23828100085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128800583.

The product of its (nonzero) digits is 30720, while the sum is 37.

The spelling of 23828100085 in words is "twenty-three billion, eight hundred twenty-eight million, one hundred thousand, eighty-five".

Divisors: 1 5 37 185 128800541 644002705 4765620017 23828100085