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201000000 = 2635667
BaseRepresentation
bin10111111101100…
…00010001000000
3112000012212011110
423332300101000
5402424000000
631540043320
74660320555
oct1376602100
9460185143
10201000000
11a3506303
1257393540
1332847516
141c9a2a2c
15129a5850
hexbfb0440

201000000 has 196 divisors, whose sum is σ = 674678864. Its totient is φ = 52800000.

The previous prime is 200999983. The next prime is 201000049. The reversal of 201000000 is 102.

It is a Harshad number since it is a multiple of its sum of digits (3).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2999967 + ... + 3000033.

Almost surely, 2201000000 is an apocalyptic number.

201000000 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 201000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337339432).

201000000 is an abundant number, since it is smaller than the sum of its proper divisors (473678864).

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

201000000 is an frugal number, since it uses more digits than its factorization.

201000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 3.

The square root of 201000000 is about 14177.4468787578. The cubic root of 201000000 is about 585.7766002651.

Adding to 201000000 its reverse (102), we get a palindrome (201000102).

The spelling of 201000000 in words is "two hundred one million", and thus it is an aban number.