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103130988 = 223233710099
BaseRepresentation
bin1100010010110…
…10011101101100
321012001121010020
412021122131230
5202400142423
614122242140
72361412302
oct611323554
9235047106
10103130988
115323a924
122a656350
131849b96c
14d9a8272
1590c24e3
hex625a76c

103130988 has 48 divisors (see below), whose sum is σ = 257913600. Its totient is φ = 31990464.

The previous prime is 103130983. The next prime is 103131043. The reversal of 103130988 is 889031301.

It is a super-2 number, since 2×1031309882 = 21272001371712288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103130983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5163 + ... + 15261.

It is an arithmetic number, because the mean of its divisors is an integer number (5373200).

Almost surely, 2103130988 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 103130988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128956800).

103130988 is an abundant number, since it is smaller than the sum of its proper divisors (154782612).

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

103130988 is a wasteful number, since it uses less digits than its factorization.

103130988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10166 (or 10164 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 103130988 is about 10155.3428302544. The cubic root of 103130988 is about 468.9534401553.

The spelling of 103130988 in words is "one hundred three million, one hundred thirty thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 12 23 37 46 69 74 92 111 138 148 222 276 444 851 1702 2553 3404 5106 10099 10212 20198 30297 40396 60594 121188 232277 373663 464554 696831 747326 929108 1120989 1393662 1494652 2241978 2787324 4483956 8594249 17188498 25782747 34376996 51565494 103130988