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103230140 = 225132913691
BaseRepresentation
bin1100010011100…
…10101010111100
321012020122010112
412021302222330
5202411331030
614124325152
72362304336
oct611625274
9235218115
10103230140
11532a8372
122a6a37b8
1318504b30
14d9d2456
1590e1a95
hex6272abc

103230140 has 48 divisors (see below), whose sum is σ = 241526880. Its totient is φ = 36798720.

The previous prime is 103230131. The next prime is 103230161. The reversal of 103230140 is 41032301.

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, 695 + ... + 14385.

It is an arithmetic number, because the mean of its divisors is an integer number (5031810).

Almost surely, 2103230140 is an apocalyptic number.

103230140 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 103230140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120763440).

103230140 is an abundant number, since it is smaller than the sum of its proper divisors (138296740).

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

103230140 is a wasteful number, since it uses less digits than its factorization.

103230140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13742 (or 13740 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 103230140 is about 10160.2234227403. The cubic root of 103230140 is about 469.1036787955.

Adding to 103230140 its reverse (41032301), we get a palindrome (144262441).

The spelling of 103230140 in words is "one hundred three million, two hundred thirty thousand, one hundred forty".

Divisors: 1 2 4 5 10 13 20 26 29 52 58 65 116 130 145 260 290 377 580 754 1508 1885 3770 7540 13691 27382 54764 68455 136910 177983 273820 355966 397039 711932 794078 889915 1588156 1779830 1985195 3559660 3970390 5161507 7940780 10323014 20646028 25807535 51615070 103230140