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2120469912 = 23321123591973
BaseRepresentation
bin111111001100011…
…1100110110011000
312110210001000212200
41332120330312120
513320320014122
6550225010200
7103355461011
oct17630746630
95423030780
102120469912
11998a4a480
124b2183960
1327a407132
14161898008
15c625c5ac
hex7e63cd98

2120469912 has 192 divisors, whose sum is σ = 6651590400. Its totient is φ = 603905280.

The previous prime is 2120469899. The next prime is 2120469913. The reversal of 2120469912 is 2199640212.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120469913) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1073758 + ... + 1075730.

It is an arithmetic number, because the mean of its divisors is an integer number (34643700).

Almost surely, 22120469912 is an apocalyptic number.

2120469912 is a gapful number since it is divisible by the number (22) 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 2120469912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3325795200).

2120469912 is an abundant number, since it is smaller than the sum of its proper divisors (4531120488).

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

2120469912 is a wasteful number, since it uses less digits than its factorization.

2120469912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078 (or 2071 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 2120469912 is about 46048.5603683763. The cubic root of 2120469912 is about 1284.7265663972.

The spelling of 2120469912 in words is "two billion, one hundred twenty million, four hundred sixty-nine thousand, nine hundred twelve".