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630028982 = 21173392297
BaseRepresentation
bin100101100011010…
…111101010110110
31121220111210021202
4211203113222312
52242241411412
6142303412502
721420105122
oct4543275266
91556453252
10630028982
112a36a9110
12156bb4132
13a06b0b1b
145d962582
153a4a03c2
hex258d7ab6

630028982 has 16 divisors (see below), whose sum is σ = 1045081872. Its totient is φ = 282453120.

The previous prime is 630028979. The next prime is 630029003. The reversal of 630028982 is 289820036.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 194543 + ... + 197754.

It is an arithmetic number, because the mean of its divisors is an integer number (65317617).

Almost surely, 2630028982 is an apocalyptic number.

630028982 is a deficient number, since it is larger than the sum of its proper divisors (415052890).

630028982 is a wasteful number, since it uses less digits than its factorization.

630028982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392383.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 630028982 is about 25100.3781246419. The cubic root of 630028982 is about 857.2750336192.

The spelling of 630028982 in words is "six hundred thirty million, twenty-eight thousand, nine hundred eighty-two".

Divisors: 1 2 11 22 73 146 803 1606 392297 784594 4315267 8630534 28637681 57275362 315014491 630028982