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999950885 = 52966110433
BaseRepresentation
bin111011100110100…
…000101000100101
32120200120202201222
4323212200220211
54021441412020
6243120230125
733531304463
oct7346405045
92520522658
10999950885
1147349a99a
1223aa6b345
1312c220a1b
1496b37833
155cbc1b25
hex3b9a0a25

999950885 has 16 divisors (see below), whose sum is σ = 1243315440. Its totient is φ = 771133440.

The previous prime is 999950881. The next prime is 999950891. The reversal of 999950885 is 588059999.

It is a Cunningham number, because it is equal to 316222+1.

It can be written as a sum of positive squares in 8 ways, for example, as 29441476 + 970509409 = 5426^2 + 31153^2 .

It is not a de Polignac number, because 999950885 - 22 = 999950881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999950881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90629 + ... + 101061.

It is an arithmetic number, because the mean of its divisors is an integer number (77707215).

Almost surely, 2999950885 is an apocalyptic number.

It is an amenable number.

999950885 is a deficient number, since it is larger than the sum of its proper divisors (243364555).

999950885 is a wasteful number, since it uses less digits than its factorization.

999950885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11128.

The product of its (nonzero) digits is 10497600, while the sum is 62.

The square root of 999950885 is about 31622.0000158118. Note that the first 4 decimals coincide. The cubic root of 999950885 is about 999.9836280653.

The spelling of 999950885 in words is "nine hundred ninety-nine million, nine hundred fifty thousand, eight hundred eighty-five".

Divisors: 1 5 29 145 661 3305 10433 19169 52165 95845 302557 1512785 6896213 34481065 199990177 999950885