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1384581902 = 211199316259
BaseRepresentation
bin101001010000111…
…0000101100001110
310120111100001022012
41102201300230032
510313423110102
6345220221222
746211515634
oct12241605416
93514301265
101384581902
11650618970
1232783a812
13190b10a42
14d1c5b354
158184b752
hex52870b0e

1384581902 has 16 divisors (see below), whose sum is σ = 2277072000. Its totient is φ = 626190840.

The previous prime is 1384581893. The next prime is 1384581907. The reversal of 1384581902 is 2091854831.

It is a self number, because there is not a number n which added to its sum of digits gives 1384581902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384581907) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 153752 + ... + 162507.

It is an arithmetic number, because the mean of its divisors is an integer number (142317000).

Almost surely, 21384581902 is an apocalyptic number.

1384581902 is a deficient number, since it is larger than the sum of its proper divisors (892490098).

1384581902 is a wasteful number, since it uses less digits than its factorization.

1384581902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316471.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 1384581902 is about 37209.9704649171. The cubic root of 1384581902 is about 1114.5670937017.

The spelling of 1384581902 in words is "one billion, three hundred eighty-four million, five hundred eighty-one thousand, nine hundred two".

Divisors: 1 2 11 22 199 398 2189 4378 316259 632518 3478849 6957698 62935541 125871082 692290951 1384581902