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64302029951 = 643100003157
BaseRepresentation
bin111011111000101100…
…110001110001111111
320010222022121120101212
4323320230301301333
52023142304424301
645312343355035
74434315144035
oct737054616177
9203868546355
1064302029951
11252a7901915
1210566752a7b
1360a9b0a643
14317dd88555
151a152884bb
hexef8b31c7f

64302029951 has 4 divisors (see below), whose sum is σ = 64402033752. Its totient is φ = 64202026152.

The previous prime is 64302029923. The next prime is 64302029993. The reversal of 64302029951 is 15992020346.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15992020346 = 27996010173.

It is a cyclic number.

It is not a de Polignac number, because 64302029951 - 230 = 63228288127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64302029899 and 64302029908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64302029921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50000936 + ... + 50002221.

It is an arithmetic number, because the mean of its divisors is an integer number (16100508438).

Almost surely, 264302029951 is an apocalyptic number.

64302029951 is a deficient number, since it is larger than the sum of its proper divisors (100003801).

64302029951 is a wasteful number, since it uses less digits than its factorization.

64302029951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100003800.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 64302029951 in words is "sixty-four billion, three hundred two million, twenty-nine thousand, nine hundred fifty-one".

Divisors: 1 643 100003157 64302029951