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64474026445 = 553972838863
BaseRepresentation
bin111100000010111100…
…111001000111001101
320011102022020220020101
4330002330321013031
52024020322321240
645341410051101
74441504116403
oct740274710715
9204368226211
1064474026445
11253859a8384
12105b4279a91
13610663b60a
143198b5b473
151a2541039a
hexf02f391cd

64474026445 has 32 divisors (see below), whose sum is σ = 79931722752. Its totient is φ = 49901709312.

The previous prime is 64474026427. The next prime is 64474026469. The reversal of 64474026445 is 54462047446.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 64474026445 - 211 = 64474024397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64474026395 and 64474026404.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 7270084 + ... + 7278946.

It is an arithmetic number, because the mean of its divisors is an integer number (2497866336).

Almost surely, 264474026445 is an apocalyptic number.

It is an amenable number.

64474026445 is a deficient number, since it is larger than the sum of its proper divisors (15457696307).

64474026445 is a wasteful number, since it uses less digits than its factorization.

64474026445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9301.

The product of its (nonzero) digits is 2580480, while the sum is 46.

The spelling of 64474026445 in words is "sixty-four billion, four hundred seventy-four million, twenty-six thousand, four hundred forty-five".

Divisors: 1 5 53 97 265 283 485 1415 5141 8863 14999 25705 27451 44315 74995 137255 469739 859711 1454903 2348695 2508229 4298555 7274515 12541145 45564683 132936137 227823415 243298213 664680685 1216491065 12894805289 64474026445