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20341330231 = 5913716315439
BaseRepresentation
bin10010111100011100…
…000001000100110111
31221111121210122022011
4102330130001010313
5313124340031411
613202241145051
71320035311525
oct227434010467
957447718264
1020341330231
118699172522
123b3832b187
131bc23168a1
14dad777315
157e0be0c21
hex4bc701137

20341330231 has 16 divisors (see below), whose sum is σ = 20966284800. Its totient is φ = 19727540928.

The previous prime is 20341330223. The next prime is 20341330253. The reversal of 20341330231 is 13203314302.

It is a cyclic number.

It is not a de Polignac number, because 20341330231 - 23 = 20341330223 is a prime.

It is a super-2 number, since 2×203413302312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20341330931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1309810 + ... + 1325248.

It is an arithmetic number, because the mean of its divisors is an integer number (1310392800).

Almost surely, 220341330231 is an apocalyptic number.

20341330231 is a deficient number, since it is larger than the sum of its proper divisors (624954569).

20341330231 is a wasteful number, since it uses less digits than its factorization.

20341330231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15798.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20341330231 its reverse (13203314302), we get a palindrome (33544644533).

The spelling of 20341330231 in words is "twenty billion, three hundred forty-one million, three hundred thirty thousand, two hundred thirty-one".

Divisors: 1 59 137 163 8083 9617 15439 22331 910901 1317529 2115143 2516557 124793437 148476863 344768309 20341330231