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20133302238 = 2327178989317
BaseRepresentation
bin10010110000000010…
…011100111111011110
31220222010100201112200
4102300002130333132
5312213111132423
613125450312330
71311631150110
oct226002347736
956863321480
1020133302238
1185a17a6a65
123a9a7286a6
131b8b1ab4ba
14d8dca53b0
157cc7ecd43
hex4b009cfde

20133302238 has 48 divisors (see below), whose sum is σ = 49882316640. Its totient is φ = 5749092288.

The previous prime is 20133302237. The next prime is 20133302243. The reversal of 20133302238 is 83220333102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133302237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 180756 + ... + 270072.

It is an arithmetic number, because the mean of its divisors is an integer number (1039214930).

Almost surely, 220133302238 is an apocalyptic number.

20133302238 is an abundant number, since it is smaller than the sum of its proper divisors (29749014402).

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

20133302238 is a wasteful number, since it uses less digits than its factorization.

20133302238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91121 (or 91118 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The spelling of 20133302238 in words is "twenty billion, one hundred thirty-three million, three hundred two thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 1789 3578 5367 10734 12523 16101 25046 32202 37569 75138 89317 112707 178634 225414 267951 535902 625219 803853 1250438 1607706 1875657 3751314 5626971 11253942 159788113 319576226 479364339 958728678 1118516791 1438093017 2237033582 2876186034 3355550373 6711100746 10066651119 20133302238