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20350112940 = 22325215352511
BaseRepresentation
bin10010111100111101…
…100001010010101100
31221112020022211220200
4102330331201102230
5313134112103230
613203153313500
71320203051223
oct227475412254
957466284820
1020350112940
1186a3121063
123b3b265890
131bc40a0361
14db09c1cba
157e1878160
hex4bcf614ac

20350112940 has 72 divisors (see below), whose sum is σ = 61758523008. Its totient is φ = 5424072960.

The previous prime is 20350112921. The next prime is 20350112941. The reversal of 20350112940 is 4921105302.

20350112940 is a `hidden beast` number, since 20 + 350 + 1 + 1 + 294 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (20350112941) 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, 361285 + ... + 413795.

It is an arithmetic number, because the mean of its divisors is an integer number (857757264).

Almost surely, 220350112940 is an apocalyptic number.

20350112940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20350112940 is an abundant number, since it is smaller than the sum of its proper divisors (41408410068).

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

20350112940 is a wasteful number, since it uses less digits than its factorization.

20350112940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54679 (or 54674 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The spelling of 20350112940 in words is "twenty billion, three hundred fifty million, one hundred twelve thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 2153 4306 6459 8612 10765 12918 19377 21530 25836 32295 38754 43060 52511 64590 77508 96885 105022 129180 157533 193770 210044 262555 315066 387540 472599 525110 630132 787665 945198 1050220 1575330 1890396 2362995 3150660 4725990 9451980 113056183 226112366 339168549 452224732 565280915 678337098 1017505647 1130561830 1356674196 1695842745 2035011294 2261123660 3391685490 4070022588 5087528235 6783370980 10175056470 20350112940