Search a number
-
+
2155102310300 = 225289262192387
BaseRepresentation
bin11111010111000110000…
…110111000111110011100
321122000200210012120202012
4133113012012320332130
5240302122142412200
64330012413450352
7311462305250402
oct37270606707634
97560623176665
102155102310300
11760a79086205
122a980b4a09b8
131282c0c14644
1476443b35472
153b0d49c2a35
hex1f5c61b8f9c

2155102310300 has 72 divisors (see below), whose sum is σ = 4730973292080. Its totient is φ = 852020646400.

The previous prime is 2155102310287. The next prime is 2155102310321. The reversal of 2155102310300 is 30132015512.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23280707 + ... + 23373093.

It is an arithmetic number, because the mean of its divisors is an integer number (65707962390).

Almost surely, 22155102310300 is an apocalyptic number.

2155102310300 is a gapful number since it is divisible by the number (20) 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 2155102310300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2365486646040).

2155102310300 is an abundant number, since it is smaller than the sum of its proper divisors (2575870981780).

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

2155102310300 is a wasteful number, since it uses less digits than its factorization.

2155102310300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95111 (or 95104 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 2155102310300 its reverse (30132015512), we get a palindrome (2185234325812).

The spelling of 2155102310300 in words is "two trillion, one hundred fifty-five billion, one hundred two million, three hundred ten thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 89 100 178 356 445 890 1780 2225 2621 4450 5242 8900 10484 13105 26210 52420 65525 92387 131050 184774 233269 262100 369548 461935 466538 923870 933076 1166345 1847740 2309675 2332690 4619350 4665380 5831725 8222443 9238700 11663450 16444886 23326900 32889772 41112215 82224430 164448860 205561075 242146327 411122150 484292654 822244300 968585308 1210731635 2421463270 4842926540 6053658175 12107316350 21551023103 24214632700 43102046206 86204092412 107755115515 215510231030 431020462060 538775577575 1077551155150 2155102310300