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38748841622660 = 22513477907401029
BaseRepresentation
bin10001100111101111010101…
…11100001011110010000100
312002012100112101201001201202
420303313222330023302010
520034330111423411120
6214224545550042032
711106340263233351
oct1063675274136204
9162170471631652
1038748841622660
111138a322a08994
1244199507a9318
13188100025cb80
1497d64d887628
15472e2db23875
hex233deaf0bc84

38748841622660 has 96 divisors (see below), whose sum is σ = 89508048053760. Its totient is φ = 14001048857088.

The previous prime is 38748841622629. The next prime is 38748841622663. The reversal of 38748841622660 is 6622614884783.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is not an unprimeable number, because it can be changed into a prime (38748841622663) 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, 96423026 + ... + 96824054.

It is an arithmetic number, because the mean of its divisors is an integer number (932375500560).

Almost surely, 238748841622660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38748841622660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44754024026880).

38748841622660 is an abundant number, since it is smaller than the sum of its proper divisors (50759206431100).

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

38748841622660 is a wasteful number, since it uses less digits than its factorization.

38748841622660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409005 (or 409003 counting only the distinct ones).

The product of its (nonzero) digits is 148635648, while the sum is 65.

The spelling of 38748841622660 in words is "thirty-eight trillion, seven hundred forty-eight billion, eight hundred forty-one million, six hundred twenty-two thousand, six hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 47 52 65 94 130 188 235 260 470 611 940 1222 2444 3055 6110 7907 12220 15814 31628 39535 79070 102791 158140 205582 371629 401029 411164 513955 743258 802058 1027910 1486516 1604116 1858145 2005145 2055820 3716290 4010290 4831177 5213377 7432580 8020580 9662354 10426754 18848363 19324708 20853508 24155885 26066885 37696726 48311770 52133770 75393452 94241815 96623540 104267540 188483630 245028719 376967260 490057438 980114876 1225143595 2450287190 3170936303 4900574380 6341872606 12683745212 15854681515 31709363030 41222171939 63418726060 82444343878 149034006241 164888687756 206110859695 298068012482 412221719390 596136024964 745170031205 824443438780 1490340062410 1937442081133 2980680124820 3874884162266 7749768324532 9687210405665 19374420811330 38748841622660