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3102030200220 = 22357219371500871
BaseRepresentation
bin101101001000111111011…
…010000111110110011100
3101222112212211002110211120
4231020333122013312130
5401310424212401340
610333015240450540
7440054125435500
oct55107732076634
911875784073746
103102030200220
11a966221a62a6
1242123b779a50
1319669bb2bb43
14aa1d3834300
1555a56d094d0
hex2d23f687d9c

3102030200220 has 288 divisors, whose sum is σ = 10922986206720. Its totient is φ = 653562846720.

The previous prime is 3102030200147. The next prime is 3102030200221. The reversal of 3102030200220 is 220020302013.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 3102030200220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3102030200221) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1316385 + ... + 2817255.

It is an arithmetic number, because the mean of its divisors is an integer number (37927035440).

Almost surely, 23102030200220 is an apocalyptic number.

3102030200220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3102030200220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5461493103360).

3102030200220 is an abundant number, since it is smaller than the sum of its proper divisors (7820956006500).

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

3102030200220 is a wasteful number, since it uses less digits than its factorization.

3102030200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500953 (or 1500944 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 3102030200220 its reverse (220020302013), we get a palindrome (3322050502233).

The spelling of 3102030200220 in words is "three trillion, one hundred two billion, thirty million, two hundred thousand, two hundred twenty".