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1912690052 = 2271343122201
BaseRepresentation
bin111001000000001…
…0101010110000100
311221022001201111022
41302000111112010
512404122040202
6513443330312
765253411560
oct16200252604
94838051438
101912690052
118a1733389
12454680998
13246357980
1414204c6a0
15b2db7ea2
hex72015584

1912690052 has 48 divisors (see below), whose sum is σ = 4215480192. Its totient is φ = 739065600.

The previous prime is 1912690037. The next prime is 1912690061. The reversal of 1912690052 is 2500962191.

It is a junction number, because it is equal to n+sod(n) for n = 1912689994 and 1912690021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45449 + ... + 76752.

It is an arithmetic number, because the mean of its divisors is an integer number (87822504).

Almost surely, 21912690052 is an apocalyptic number.

It is an amenable number.

1912690052 is an abundant number, since it is smaller than the sum of its proper divisors (2302790140).

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

1912690052 is a wasteful number, since it uses less digits than its factorization.

1912690052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122268 (or 122266 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 1912690052 is about 43734.3120673002. The cubic root of 1912690052 is about 1241.3136555158.

The spelling of 1912690052 in words is "one billion, nine hundred twelve million, six hundred ninety thousand, fifty-two".

Divisors: 1 2 4 7 13 14 26 28 43 52 86 91 172 182 301 364 559 602 1118 1204 2236 3913 7826 15652 122201 244402 488804 855407 1588613 1710814 3177226 3421628 5254643 6354452 10509286 11120291 21018572 22240582 36782501 44481164 68310359 73565002 136620718 147130004 273241436 478172513 956345026 1912690052