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20031200232 = 23317389126211
BaseRepresentation
bin10010101001111100…
…111101101111101000
31220201000020101220220
4102221330331233220
5312010441401412
613111402050040
71306251251451
oct225174755750
956630211826
1020031200232
11854a0aa23a
123a704a9920
131b72cb0004
14d804c8128
157c388068c
hex4a9f3dbe8

20031200232 has 64 divisors (see below), whose sum is σ = 53160494400. Its totient is φ = 6268093440.

The previous prime is 20031200221. The next prime is 20031200303. The reversal of 20031200232 is 23200213002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95607 + ... + 221817.

It is an arithmetic number, because the mean of its divisors is an integer number (830632725).

Almost surely, 220031200232 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 20031200232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26580247200).

20031200232 is an abundant number, since it is smaller than the sum of its proper divisors (33129294168).

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

20031200232 is a wasteful number, since it uses less digits than its factorization.

20031200232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126626 (or 126622 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20031200232 its reverse (23200213002), we get a palindrome (43231413234).

The spelling of 20031200232 in words is "twenty billion, thirty-one million, two hundred thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 389 408 778 1167 1556 2334 3112 4668 6613 9336 13226 19839 26452 39678 52904 79356 126211 158712 252422 378633 504844 757266 1009688 1514532 2145587 3029064 4291174 6436761 8582348 12873522 17164696 25747044 49096079 51494088 98192158 147288237 196384316 294576474 392768632 589152948 834633343 1178305896 1669266686 2503900029 3338533372 5007800058 6677066744 10015600116 20031200232