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64157124043 = 191449374761
BaseRepresentation
bin111011110000000100…
…000000010111001011
320010121012221120212101
4323300010000113023
52022343210432133
645250125454231
74430605361605
oct736004002713
9203535846771
1064157124043
1125233029971
1210526111377
136085aa32bc
143168a28175
151a076b337d
hexef01005cb

64157124043 has 8 divisors (see below), whose sum is σ = 64508242176. Its totient is φ = 63806164800.

The previous prime is 64157124029. The next prime is 64157124047. The reversal of 64157124043 is 34042175146.

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 64157124043 - 213 = 64157115851 is a prime.

It is a super-2 number, since 2×641571240432 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64157123993 and 64157124011.

It is not an unprimeable number, because it can be changed into a prime (64157124047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 820783 + ... + 895543.

It is an arithmetic number, because the mean of its divisors is an integer number (8063530272).

Almost surely, 264157124043 is an apocalyptic number.

64157124043 is a deficient number, since it is larger than the sum of its proper divisors (351118133).

64157124043 is a wasteful number, since it uses less digits than its factorization.

64157124043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79445.

The product of its (nonzero) digits is 80640, while the sum is 37.

Adding to 64157124043 its reverse (34042175146), we get a palindrome (98199299189).

The spelling of 64157124043 in words is "sixty-four billion, one hundred fifty-seven million, one hundred twenty-four thousand, forty-three".

Divisors: 1 191 4493 74761 858163 14279351 335901173 64157124043