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1212641023 = 111091011377
BaseRepresentation
bin100100001000111…
…0110111011111111
310010111210112202111
41020101312323333
54440414003043
6320155034451
742023164366
oct11021667377
93114715674
101212641023
11572560170
1229a13ba27
131642cc189
14b70a07dd
15716d609d
hex48476eff

1212641023 has 8 divisors (see below), whose sum is σ = 1335018960. Its totient is φ = 1092286080.

The previous prime is 1212641011. The next prime is 1212641041. The reversal of 1212641023 is 3201462121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212641023 - 217 = 1212509951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212640985 and 1212641003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212641063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504490 + ... + 506887.

It is an arithmetic number, because the mean of its divisors is an integer number (166877370).

Almost surely, 21212641023 is an apocalyptic number.

1212641023 is a deficient number, since it is larger than the sum of its proper divisors (122377937).

1212641023 is a wasteful number, since it uses less digits than its factorization.

1212641023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011497.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1212641023 is about 34822.9956063518. The cubic root of 1212641023 is about 1066.3769571394.

The spelling of 1212641023 in words is "one billion, two hundred twelve million, six hundred forty-one thousand, twenty-three".

Divisors: 1 11 109 1199 1011377 11125147 110240093 1212641023