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102038740 = 225192631021
BaseRepresentation
bin1100001010011…
…11110011010100
321010000002211121
412011033303110
5202110214430
614043013324
72346213016
oct605176324
9233002747
10102038740
1152664241
122a20a244
13181a876b
14d7a21b6
158e58a7a
hex614fcd4

102038740 has 48 divisors (see below), whose sum is σ = 226638720. Its totient is φ = 38482560.

The previous prime is 102038723. The next prime is 102038753. The reversal of 102038740 is 47830201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99430 + ... + 100450.

It is an arithmetic number, because the mean of its divisors is an integer number (4721640).

Almost surely, 2102038740 is an apocalyptic number.

102038740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102038740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113319360).

102038740 is an abundant number, since it is smaller than the sum of its proper divisors (124599980).

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

102038740 is a wasteful number, since it uses less digits than its factorization.

102038740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312 (or 1310 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 102038740 is about 10101.4226720794. The cubic root of 102038740 is about 467.2920176408.

Adding to 102038740 its reverse (47830201), we get a palindrome (149868941).

The spelling of 102038740 in words is "one hundred two million, thirty-eight thousand, seven hundred forty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 263 380 526 1021 1052 1315 2042 2630 4084 4997 5105 5260 9994 10210 19399 19988 20420 24985 38798 49970 77596 96995 99940 193990 268523 387980 537046 1074092 1342615 2685230 5101937 5370460 10203874 20407748 25509685 51019370 102038740