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497669701 = 1390135801
BaseRepresentation
bin11101101010011…
…101011001000101
31021200110020111011
4131222131121011
52004400412301
6121214442221
715222060034
oct3552353105
91250406434
10497669701
11235a15681
1211a803371
137c14a519
144a14a71b
152da57a51
hex1da9d645

497669701 has 4 divisors (see below), whose sum is σ = 497719404. Its totient is φ = 497620000.

The previous prime is 497669677. The next prime is 497669707. The reversal of 497669701 is 107966794.

497669701 = 157742 + 157752.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 248819076 + 248850625 = 15774^2 + 15775^2 .

It is a cyclic number.

It is not a de Polignac number, because 497669701 - 215 = 497636933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497669707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4000 + ... + 31801.

It is an arithmetic number, because the mean of its divisors is an integer number (124429851).

Almost surely, 2497669701 is an apocalyptic number.

497669701 is the 15775-th centered square number.

It is an amenable number.

497669701 is a deficient number, since it is larger than the sum of its proper divisors (49703).

497669701 is a wasteful number, since it uses less digits than its factorization.

497669701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49702.

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 497669701 is about 22308.5118508609. The cubic root of 497669701 is about 792.4655657467.

The spelling of 497669701 in words is "four hundred ninety-seven million, six hundred sixty-nine thousand, seven hundred one".

Divisors: 1 13901 35801 497669701