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2155352552000 = 26531919737187
BaseRepresentation
bin11111010111010101000…
…001011111001001000000
321122001100020002011211022
4133113111001133021000
5240303130223131000
64330053313205012
7311501434260134
oct37272501371100
97561306064738
102155352552000
1176109736452a
122a987b260768
13128330a1005b
14764690753c4
153b0eb953585
hex1f5d505f240

2155352552000 has 224 divisors, whose sum is σ = 5622293738880. Its totient is φ = 816237619200.

The previous prime is 2155352551993. The next prime is 2155352552009. The reversal of 2155352552000 is 2552535512.

It is not an unprimeable number, because it can be changed into a prime (2155352552009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 299892407 + ... + 299899593.

It is an arithmetic number, because the mean of its divisors is an integer number (25099525620).

Almost surely, 22155352552000 is an apocalyptic number.

2155352552000 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 2155352552000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2811146869440).

2155352552000 is an abundant number, since it is smaller than the sum of its proper divisors (3466941186880).

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

2155352552000 is a wasteful number, since it uses less digits than its factorization.

2155352552000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9206 (or 9186 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 35.

The spelling of 2155352552000 in words is "two trillion, one hundred fifty-five billion, three hundred fifty-two million, five hundred fifty-two thousand".