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38732825838 = 2372361657313
BaseRepresentation
bin100100000100101010…
…000000010011101110
310200222100122102100010
4210010222000103232
51113311100411323
625443230514050
72540556405330
oct440452002356
9120870572303
1038732825838
1115476741373
12760b665926
13386369b875
141c36193450
15101a62cc93
hex904a804ee

38732825838 has 64 divisors (see below), whose sum is σ = 93895990272. Its totient is φ = 10411822080.

The previous prime is 38732825837. The next prime is 38732825849. The reversal of 38732825838 is 83852823783.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38732825837) 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 31 ways as a sum of consecutive naturals, for example, 269731 + ... + 387582.

It is an arithmetic number, because the mean of its divisors is an integer number (1467124848).

Almost surely, 238732825838 is an apocalyptic number.

38732825838 is an abundant number, since it is smaller than the sum of its proper divisors (55163164434).

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

38732825838 is a wasteful number, since it uses less digits than its factorization.

38732825838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657409.

The product of its digits is 15482880, while the sum is 57.

The spelling of 38732825838 in words is "thirty-eight billion, seven hundred thirty-two million, eight hundred twenty-five thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 7 14 21 23 42 46 61 69 122 138 161 183 322 366 427 483 854 966 1281 1403 2562 2806 4209 8418 9821 19642 29463 58926 657313 1314626 1971939 3943878 4601191 9202382 13803573 15118199 27607146 30236398 40096093 45354597 80192186 90709194 105827393 120288279 211654786 240576558 280672651 317482179 561345302 634964358 842017953 922210139 1684035906 1844420278 2766630417 5533260834 6455470973 12910941946 19366412919 38732825838