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10029971771 = 18115538361
BaseRepresentation
bin10010101011101010…
…10011100100111011
3221220000011100122222
421111311103210323
5131020133044041
64335133034255
7503360232131
oct112565234473
927800140588
1010029971771
114287726276
121b3b02598b
13c3ac82651
146b2125751
153da82d74b
hex255d5393b

10029971771 has 4 divisors (see below), whose sum is σ = 10035511944. Its totient is φ = 10024431600.

The previous prime is 10029971719. The next prime is 10029971779. The reversal of 10029971771 is 17717992001.

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

It is a cyclic number.

It is not a de Polignac number, because 10029971771 - 222 = 10025777467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10029971779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2767370 + ... + 2770991.

It is an arithmetic number, because the mean of its divisors is an integer number (2508877986).

Almost surely, 210029971771 is an apocalyptic number.

10029971771 is a deficient number, since it is larger than the sum of its proper divisors (5540173).

10029971771 is an equidigital number, since it uses as much as digits as its factorization.

10029971771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5540172.

The product of its (nonzero) digits is 55566, while the sum is 44.

The spelling of 10029971771 in words is "ten billion, twenty-nine million, nine hundred seventy-one thousand, seven hundred seventy-one".

Divisors: 1 1811 5538361 10029971771