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468996821 = 4259110119
BaseRepresentation
bin11011111101000…
…101001011010101
31012200111111200122
4123331011023111
51430030344241
6114312121325
714423256446
oct3375051325
91180444618
10468996821
11220811287
12111096245
137621b617
14464052cd
152b29204b
hex1bf452d5

468996821 has 4 divisors (see below), whose sum is σ = 469111200. Its totient is φ = 468882444.

The previous prime is 468996797. The next prime is 468996823. The reversal of 468996821 is 128699864.

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 468996821 - 214 = 468980437 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 (468996823) 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 3 ways as a sum of consecutive naturals, for example, 50801 + ... + 59318.

It is an arithmetic number, because the mean of its divisors is an integer number (117277800).

Almost surely, 2468996821 is an apocalyptic number.

It is an amenable number.

468996821 is a deficient number, since it is larger than the sum of its proper divisors (114379).

468996821 is a wasteful number, since it uses less digits than its factorization.

468996821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114378.

The product of its digits is 1492992, while the sum is 53.

The square root of 468996821 is about 21656.3344312928. The cubic root of 468996821 is about 776.9444457177.

The spelling of 468996821 in words is "four hundred sixty-eight million, nine hundred ninety-six thousand, eight hundred twenty-one".

Divisors: 1 4259 110119 468996821