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20431301400412 = 22731338919973001
BaseRepresentation
bin1001010010101000010000…
…11101100101011101011100
32200100012202112010202202221
410221110020131211131130
510134221301124303122
6111242002115555124
74206053460314020
oct451241035453534
980305675122687
1020431301400412
116567958aa78a1
12235b8815bbaa4
13b528817c2686
14508c47632380
152566e97736c7
hex12950876575c

20431301400412 has 96 divisors (see below), whose sum is σ = 41132817048960. Its totient is φ = 8698599936000.

The previous prime is 20431301400397. The next prime is 20431301400427. The reversal of 20431301400412 is 21400410313402.

It is an interprime number because it is at equal distance from previous prime (20431301400397) and next prime (20431301400427).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6808162912 + ... + 6808165912.

It is an arithmetic number, because the mean of its divisors is an integer number (428466844260).

Almost surely, 220431301400412 is an apocalyptic number.

It is an amenable number.

20431301400412 is an abundant number, since it is smaller than the sum of its proper divisors (20701515648548).

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

20431301400412 is a wasteful number, since it uses less digits than its factorization.

20431301400412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5711 (or 5709 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 20431301400412 its reverse (21400410313402), we get a palindrome (41831711713814).

The spelling of 20431301400412 in words is "twenty trillion, four hundred thirty-one billion, three hundred one million, four hundred thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 313 389 626 778 1252 1556 1997 2191 2723 3001 3994 4382 5446 6002 7988 8764 10892 12004 13979 21007 27958 42014 55916 84028 121757 243514 487028 625061 776833 852299 939313 1167389 1250122 1553666 1704598 1878626 2334778 2500244 3107332 3409196 3757252 4375427 4669556 5437831 5992997 6575191 8171723 8750854 10875662 11985994 13150382 16343446 17501708 21751324 23971988 26300764 32686892 41950979 83901958 167803916 243148729 365392757 486297458 730785514 972594916 1461571028 1702041103 1875808061 2331275833 2557749299 3404082206 3751616122 4662551666 5115498598 6808164412 7503232244 9325103332 10230997196 13130656427 16318930831 26261312854 32637861662 52522625708 65275723324 729689335729 1459378671458 2918757342916 5107825350103 10215650700206 20431301400412