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497472745 = 57211297173
BaseRepresentation
bin11101101001101…
…101010011101001
31021200002020022111
4131221231103221
52004323111440
6121210322321
715220306600
oct3551552351
91250066274
10497472745
112358a0700
1211a7293a1
137c0ab993
144a0d8a37
152da194ea
hex1da6d4e9

497472745 has 72 divisors (see below), whose sum is σ = 775627272. Its totient is φ = 305141760.

The previous prime is 497472691. The next prime is 497472749. The reversal of 497472745 is 547274794.

It can be written as a sum of positive squares in 4 ways, for example, as 129868816 + 367603929 = 11396^2 + 19173^2 .

It is not a de Polignac number, because 497472745 - 29 = 497472233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (497472749) 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 71 ways as a sum of consecutive naturals, for example, 2875479 + ... + 2875651.

It is an arithmetic number, because the mean of its divisors is an integer number (10772601).

Almost surely, 2497472745 is an apocalyptic number.

It is an amenable number.

497472745 is a deficient number, since it is larger than the sum of its proper divisors (278154527).

497472745 is a wasteful number, since it uses less digits than its factorization.

497472745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 293 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 49.

The square root of 497472745 is about 22304.0970451619. The cubic root of 497472745 is about 792.3610108299.

The spelling of 497472745 in words is "four hundred ninety-seven million, four hundred seventy-two thousand, seven hundred forty-five".

Divisors: 1 5 7 11 35 49 55 77 97 121 173 245 385 485 539 605 679 847 865 1067 1211 1903 2695 3395 4235 4753 5335 5929 6055 7469 8477 9515 11737 13321 16781 20933 23765 29645 37345 42385 52283 58685 66605 82159 83905 93247 104665 117467 146531 184591 261415 410795 466235 575113 587335 732655 822269 922955 1025717 1292137 2030501 2875565 4111345 5128585 6460685 9044959 10152505 14213507 45224795 71067535 99494549 497472745