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23122033020 = 223251011271839
BaseRepresentation
bin10101100010001011…
…100011100101111100
32012200102011222102100
4111202023203211330
5334323220024040
614342213225100
71445662015662
oct254213434574
965612158370
1023122033020
11989586a6a9
124593632190
132246448558
141194bb6c32
15904db7b30
hex5622e397c

23122033020 has 72 divisors (see below), whose sum is σ = 70831313280. Its totient is φ = 6104822400.

The previous prime is 23122032991. The next prime is 23122033021. The reversal of 23122033020 is 2033022132.

It is a happy number.

23122033020 is a `hidden beast` number, since 2 + 312 + 2 + 0 + 330 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23122032984 and 23122033002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23122033021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 617740 + ... + 654099.

It is an arithmetic number, because the mean of its divisors is an integer number (983768240).

Almost surely, 223122033020 is an apocalyptic number.

23122033020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23122033020 is an abundant number, since it is smaller than the sum of its proper divisors (47709280260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23122033020 is a wasteful number, since it uses less digits than its factorization.

23122033020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271955 (or 1271950 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 23122033020 its reverse (2033022132), we get a palindrome (25155055152).

The spelling of 23122033020 in words is "twenty-three billion, one hundred twenty-two million, thirty-three thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 101 180 202 303 404 505 606 909 1010 1212 1515 1818 2020 3030 3636 4545 6060 9090 18180 1271839 2543678 3815517 5087356 6359195 7631034 11446551 12718390 15262068 19077585 22893102 25436780 38155170 45786204 57232755 76310340 114465510 128455739 228931020 256911478 385367217 513822956 642278695 770734434 1156101651 1284557390 1541468868 1926836085 2312203302 2569114780 3853672170 4624406604 5780508255 7707344340 11561016510 23122033020