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20470453476 = 22311661234613
BaseRepresentation
bin10011000100001000…
…100101010011100100
31221211121202210002120
4103010020211103210
5313410414002401
613223132505540
71323163661244
oct230410452344
957747683076
1020470453476
118755045750
123b7361b2b0
131c12cb6285
14dc2989b24
157ec1e9836
hex4c42254e4

20470453476 has 48 divisors (see below), whose sum is σ = 52185661248. Its totient is φ = 6193756800.

The previous prime is 20470453441. The next prime is 20470453477. The reversal of 20470453476 is 67435407402.

It is not an unprimeable number, because it can be changed into a prime (20470453477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30055 + ... + 204558.

It is an arithmetic number, because the mean of its divisors is an integer number (1087201276).

Almost surely, 220470453476 is an apocalyptic number.

It is an amenable number.

20470453476 is an abundant number, since it is smaller than the sum of its proper divisors (31715207772).

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

20470453476 is a wasteful number, since it uses less digits than its factorization.

20470453476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235292 (or 235290 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 42.

The spelling of 20470453476 in words is "twenty billion, four hundred seventy million, four hundred fifty-three thousand, four hundred seventy-six".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 661 1322 1983 2644 3966 7271 7932 14542 21813 29084 43626 87252 234613 469226 703839 938452 1407678 2580743 2815356 5161486 7742229 10322972 15484458 30968916 155079193 310158386 465237579 620316772 930475158 1705871123 1860950316 3411742246 5117613369 6823484492 10235226738 20470453476