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38923009138254 = 231791931171160357
BaseRepresentation
bin10001101100110011110000…
…01000100001111001001110
312002211000002102121120111110
420312121320020201321032
520100203310314411004
6214440552240232450
711125044310545633
oct1066317010417116
9162730072546443
1038923009138254
1111447178a3521a
12444765900b726
13189456872abc7
14987c52bdc18a
15477724283589
hex236678221e4e

38923009138254 has 64 divisors (see below), whose sum is σ = 78754199927040. Its totient is φ = 12823964375040.

The previous prime is 38923009138253. The next prime is 38923009138301. The reversal of 38923009138254 is 45283190032983.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 38923009138194 and 38923009138203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38923009138253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 242647044 + ... + 242807400.

It is an arithmetic number, because the mean of its divisors is an integer number (1230534373860).

Almost surely, 238923009138254 is an apocalyptic number.

38923009138254 is an abundant number, since it is smaller than the sum of its proper divisors (39831190788786).

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

38923009138254 is a wasteful number, since it uses less digits than its factorization.

38923009138254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161905.

The product of its (nonzero) digits is 11197440, while the sum is 57.

The spelling of 38923009138254 in words is "thirty-eight trillion, nine hundred twenty-three billion, nine million, one hundred thirty-eight thousand, two hundred fifty-four".

Divisors: 1 2 3 6 179 193 358 386 537 579 1074 1158 1171 2342 3513 7026 34547 69094 103641 160357 207282 209609 226003 320714 419218 452006 481071 628827 678009 962142 1257654 1356018 28703903 30948901 40454537 57407806 61897802 80909074 86111709 92846703 121363611 172223418 185693406 187778047 242727222 375556094 563334141 1126668282 5539853279 11079706558 16619559837 33239119674 33612270413 36241163071 67224540826 72482326142 100836811239 108723489213 201673622478 217446978426 6487168189709 12974336379418 19461504569127 38923009138254