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38628730413 = 33721310512137
BaseRepresentation
bin100011111110011100…
…111010011000101101
310200201002202211021000
4203332130322120231
51113102423333123
625425031430513
72535153535200
oct437634723055
9120632684230
1038628730413
1115422a02999
1275a0825439
133847c52c40
141c26417937
151011419b43
hex8fe73a62d

38628730413 has 96 divisors (see below), whose sum is σ = 71793697920. Its totient is φ = 20346681600.

The previous prime is 38628730373. The next prime is 38628730451. The reversal of 38628730413 is 31403782683.

38628730413 is a `hidden beast` number, since 3 + 8 + 628 + 7 + 3 + 0 + 4 + 13 = 666.

It is not a de Polignac number, because 38628730413 - 218 = 38628468269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38628230413) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18075081 + ... + 18077217.

It is an arithmetic number, because the mean of its divisors is an integer number (747851020).

Almost surely, 238628730413 is an apocalyptic number.

It is an amenable number.

38628730413 is a deficient number, since it is larger than the sum of its proper divisors (33164967507).

38628730413 is a wasteful number, since it uses less digits than its factorization.

38628730413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3224 (or 3211 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 38628730413 in words is "thirty-eight billion, six hundred twenty-eight million, seven hundred thirty thousand, four hundred thirteen".

Divisors: 1 3 7 9 13 21 27 39 49 63 91 117 147 189 273 351 441 637 819 1051 1323 1911 2137 2457 3153 5733 6411 7357 9459 13663 14959 17199 19233 22071 27781 28377 40989 44877 51499 57699 66213 83343 95641 104713 122967 134631 154497 194467 198639 250029 286923 314139 368901 403893 463491 583401 669487 750087 860769 942417 1361269 1390473 1750203 2008461 2245987 2582307 2827251 4083807 5250609 6025383 6737961 12251421 15721909 18076149 20213883 29197831 36754263 47165727 60641649 87593493 110053363 141497181 204384817 262780479 330160089 424491543 613154451 788341437 990480267 1430693719 1839463353 2971440801 4292081157 5518390059 12876243471 38628730413