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200029980 = 223531414361
BaseRepresentation
bin10111110110000…
…11011100011100
3111221101120112210
423323003130130
5402201424410
631503200420
74646140533
oct1373033434
9457346483
10200029980
11a2a03537
1256ba6110
1332597b47
141c7cd31a
1512863220
hexbec371c

200029980 has 192 divisors, whose sum is σ = 615960576. Its totient is φ = 48384000.

The previous prime is 200029969. The next prime is 200029981. The reversal of 200029980 is 89920002.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200029981) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3279150 + ... + 3279210.

It is an arithmetic number, because the mean of its divisors is an integer number (3208128).

Almost surely, 2200029980 is an apocalyptic number.

200029980 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 200029980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307980288).

200029980 is an abundant number, since it is smaller than the sum of its proper divisors (415930596).

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

200029980 is a wasteful number, since it uses less digits than its factorization.

200029980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 200029980 is about 14143.1955370772. The cubic root of 200029980 is about 584.8327668666.

200029980 divided by its sum of digits (30) gives a palindrome (6667666).

Adding to 200029980 its reverse (89920002), we get a palindrome (289949982).

The spelling of 200029980 in words is "two hundred million, twenty-nine thousand, nine hundred eighty".