Search a number
-
+
2170869120 = 273357131137
BaseRepresentation
bin1000000101100100…
…1101010110000000
312121021212120121000
42001121031112000
513421220302440
6555225132000
7104540040330
oct20131152600
95537776530
102170869120
11a14443112
1250702a000
132879a2154
141684570c0
15ca8b5730
hex8164d580

2170869120 has 512 divisors, whose sum is σ = 8918553600. Its totient is φ = 488816640.

The previous prime is 2170869119. The next prime is 2170869133. The reversal of 2170869120 is 219680712.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15845692 + ... + 15845828.

It is an arithmetic number, because the mean of its divisors is an integer number (17419050).

Almost surely, 22170869120 is an apocalyptic number.

2170869120 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 2170869120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4459276800).

2170869120 is an abundant number, since it is smaller than the sum of its proper divisors (6747684480).

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

2170869120 is a wasteful number, since it uses less digits than its factorization.

2170869120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 2170869120 is about 46592.5865347697. The cubic root of 2170869120 is about 1294.8254103913.

The spelling of 2170869120 in words is "two billion, one hundred seventy million, eight hundred sixty-nine thousand, one hundred twenty".