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1630068 = 2231153233
BaseRepresentation
bin110001101111101110100
310001211000220
412031331310
5404130233
654534340
716566246
oct6157564
93054026
101630068
11a13770
126673b0
13450c4b
14306096
15222eb3
hex18df74

1630068 has 48 divisors (see below), whose sum is σ = 4245696. Its totient is φ = 482560.

The previous prime is 1630051. The next prime is 1630091. The reversal of 1630068 is 8600361.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6880 + ... + 7112.

It is an arithmetic number, because the mean of its divisors is an integer number (88452).

21630068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1630068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2122848).

1630068 is an abundant number, since it is smaller than the sum of its proper divisors (2615628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1630068 is a wasteful number, since it uses less digits than its factorization.

1630068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1630068 is about 1276.7411640579. The cubic root of 1630068 is about 117.6888287171.

The spelling of 1630068 in words is "one million, six hundred thirty thousand, sixty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 53 66 106 132 159 212 233 318 466 583 636 699 932 1166 1398 1749 2332 2563 2796 3498 5126 6996 7689 10252 12349 15378 24698 30756 37047 49396 74094 135839 148188 271678 407517 543356 815034 1630068