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131041100 = 225217194057
BaseRepresentation
bin1111100111110…
…00011101001100
3100010120120121002
413303320131030
5232021303400
621000355432
73150555011
oct763703514
9303516532
10131041100
1167a73133
1237a75b78
13211c1618
1413591708
15b786ed5
hex7cf874c

131041100 has 72 divisors (see below), whose sum is σ = 317010960. Its totient is φ = 46725120.

The previous prime is 131041091. The next prime is 131041109. The reversal of 131041100 is 1140131.

It is an interprime number because it is at equal distance from previous prime (131041091) and next prime (131041109).

It is not an unprimeable number, because it can be changed into a prime (131041109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30272 + ... + 34328.

It is an arithmetic number, because the mean of its divisors is an integer number (4402930).

Almost surely, 2131041100 is an apocalyptic number.

131041100 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 131041100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158505480).

131041100 is an abundant number, since it is smaller than the sum of its proper divisors (185969860).

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

131041100 is a wasteful number, since it uses less digits than its factorization.

131041100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4107 (or 4100 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 131041100 is about 11447.3184632909. The cubic root of 131041100 is about 507.9284159368.

Adding to 131041100 its reverse (1140131), we get a palindrome (132181231).

The spelling of 131041100 in words is "one hundred thirty-one million, forty-one thousand, one hundred".

Divisors: 1 2 4 5 10 17 19 20 25 34 38 50 68 76 85 95 100 170 190 323 340 380 425 475 646 850 950 1292 1615 1700 1900 3230 4057 6460 8075 8114 16150 16228 20285 32300 40570 68969 77083 81140 101425 137938 154166 202850 275876 308332 344845 385415 405700 689690 770830 1310411 1379380 1541660 1724225 1927075 2620822 3448450 3854150 5241644 6552055 6896900 7708300 13104110 26208220 32760275 65520550 131041100