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64823053 = 611062673
BaseRepresentation
bin1111011101000…
…1111100001101
311111222100111211
43313101330031
5113043314203
610233214421
71414662331
oct367217415
9144870454
1064823053
1133655579
1219861411
1310578349
1488757c1
155a56c6d
hex3dd1f0d

64823053 has 4 divisors (see below), whose sum is σ = 65885788. Its totient is φ = 63760320.

The previous prime is 64823029. The next prime is 64823093. The reversal of 64823053 is 35032846.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8076964 + 56746089 = 2842^2 + 7533^2 .

It is a cyclic number.

It is not a de Polignac number, because 64823053 - 25 = 64823021 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 (64823093) 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, 531276 + ... + 531397.

It is an arithmetic number, because the mean of its divisors is an integer number (16471447).

Almost surely, 264823053 is an apocalyptic number.

It is an amenable number.

64823053 is a deficient number, since it is larger than the sum of its proper divisors (1062735).

64823053 is a wasteful number, since it uses less digits than its factorization.

64823053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062734.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 64823053 is about 8051.2764826455. The cubic root of 64823053 is about 401.7073953829.

Adding to 64823053 its reverse (35032846), we get a palindrome (99855899).

The spelling of 64823053 in words is "sixty-four million, eight hundred twenty-three thousand, fifty-three".

Divisors: 1 61 1062673 64823053