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64123053 = 321374351
BaseRepresentation
bin1111010010011…
…1000010101101
311110122210021220
43310213002231
5112403414203
610210213553
71406015451
oct364470255
9143583256
1064123053
1133217665
12195842b9
1310391847
148732661
155969653
hex3d270ad

64123053 has 4 divisors (see below), whose sum is σ = 85497408. Its totient is φ = 42748700.

The previous prime is 64123049. The next prime is 64123069. The reversal of 64123053 is 35032146.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64123053 - 22 = 64123049 is a prime.

It is a super-2 number, since 2×641230532 = 8223531852081618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64123013) 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, 10687173 + ... + 10687178.

It is an arithmetic number, because the mean of its divisors is an integer number (21374352).

Almost surely, 264123053 is an apocalyptic number.

It is an amenable number.

64123053 is a deficient number, since it is larger than the sum of its proper divisors (21374355).

64123053 is a wasteful number, since it uses less digits than its factorization.

64123053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21374354.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 64123053 is about 8007.6871192623. The cubic root of 64123053 is about 400.2561962903.

Adding to 64123053 its reverse (35032146), we get a palindrome (99155199).

The spelling of 64123053 in words is "sixty-four million, one hundred twenty-three thousand, fifty-three".

Divisors: 1 3 21374351 64123053