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20464286007 = 3113741408787
BaseRepresentation
bin10011000011110001…
…000011100100110111
31221211012011102220210
4103003301003210313
5313402324123012
613222352400503
71323060363264
oct230361034467
957735142823
1020464286007
118751612a70
123b71546133
131c11936c99
14dc1c2226b
157eb8cc23c
hex4c3c43937

20464286007 has 32 divisors (see below), whose sum is σ = 31316431104. Its totient is φ = 11773036800.

The previous prime is 20464285979. The next prime is 20464286033. The reversal of 20464286007 is 70068246402.

It is not a de Polignac number, because 20464286007 - 26 = 20464285943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20464286107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154333 + ... + 254454.

It is an arithmetic number, because the mean of its divisors is an integer number (978638472).

Almost surely, 220464286007 is an apocalyptic number.

20464286007 is a deficient number, since it is larger than the sum of its proper divisors (10852145097).

20464286007 is a wasteful number, since it uses less digits than its factorization.

20464286007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408879.

The product of its (nonzero) digits is 129024, while the sum is 39.

The spelling of 20464286007 in words is "twenty billion, four hundred sixty-four million, two hundred eighty-six thousand, seven".

Divisors: 1 3 11 33 37 41 111 123 407 451 1221 1353 1517 4551 16687 50061 408787 1226361 4496657 13489971 15125119 16760267 45375357 50280801 166376309 184362937 499128927 553088811 620129879 1860389637 6821428669 20464286007