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2136020250 = 2353721317263
BaseRepresentation
bin111111101010001…
…0001010100011010
312111212022001221010
41333110101110122
513333310122000
6551542154350
7103634605200
oct17724212432
95455261833
102136020250
119a68006a1
124b74229b6
132806c0110
14163985070
15c77ced50
hex7f51151a

2136020250 has 384 divisors, whose sum is σ = 7098803712. Its totient is φ = 422553600.

The previous prime is 2136020209. The next prime is 2136020251. The reversal of 2136020250 is 520206312.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2136020251) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 8121619 + ... + 8121881.

It is an arithmetic number, because the mean of its divisors is an integer number (18486468).

Almost surely, 22136020250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2136020250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3549401856).

2136020250 is an abundant number, since it is smaller than the sum of its proper divisors (4962783462).

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

2136020250 is a wasteful number, since it uses less digits than its factorization.

2136020250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2136020250 is about 46217.0991084469. The cubic root of 2136020250 is about 1287.8594088825.

Adding to 2136020250 its reverse (520206312), we get a palindrome (2656226562).

The spelling of 2136020250 in words is "two billion, one hundred thirty-six million, twenty thousand, two hundred fifty".