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200032144 = 24134332221
BaseRepresentation
bin10111110110000…
…11111110010000
3111221101200111221
423323003332100
5402202012034
631503214424
74646150044
oct1373037620
9457350457
10200032144
11a2a05124
1256ba7414
1332598b20
141c7d0024
1512863bb4
hexbec3f90

200032144 has 40 divisors (see below), whose sum is σ = 418527032. Its totient is φ = 92067840.

The previous prime is 200032117. The next prime is 200032163. The reversal of 200032144 is 441230002.

It can be written as a sum of positive squares in 4 ways, for example, as 883600 + 199148544 = 940^2 + 14112^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88954 + ... + 91174.

Almost surely, 2200032144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200032144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209263516).

200032144 is an abundant number, since it is smaller than the sum of its proper divisors (218494888).

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

200032144 is a wasteful number, since it uses less digits than its factorization.

200032144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2675 (or 2669 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 200032144 is about 14143.2720400903. The cubic root of 200032144 is about 584.8348758397.

Adding to 200032144 its reverse (441230002), we get a palindrome (641262146).

The spelling of 200032144 in words is "two hundred million, thirty-two thousand, one hundred forty-four".

Divisors: 1 2 4 8 13 16 26 52 104 208 433 866 1732 2221 3464 4442 5629 6928 8884 11258 17768 22516 28873 35536 45032 57746 90064 115492 230984 461968 961693 1923386 3846772 7693544 12502009 15387088 25004018 50008036 100016072 200032144