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131041044 = 22332235441
BaseRepresentation
bin1111100111110…
…00011100010100
3100010120120112000
413303320130110
5232021303134
621000355300
73150554601
oct763703424
9303516460
10131041044
1167a73092
1237a75b30
13211c15a4
14135916a8
15b786e99
hex7cf8714

131041044 has 48 divisors (see below), whose sum is σ = 341322240. Its totient is φ = 43476480.

The previous prime is 131041037. The next prime is 131041073. The reversal of 131041044 is 440140131.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 21364 + ... + 26804.

It is an arithmetic number, because the mean of its divisors is an integer number (7110880).

Almost surely, 2131041044 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 131041044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170661120).

131041044 is an abundant number, since it is smaller than the sum of its proper divisors (210281196).

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

131041044 is a wasteful number, since it uses less digits than its factorization.

131041044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5677 (or 5669 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 131041044 is about 11447.3160173029. The cubic root of 131041044 is about 507.9283435830.

Adding to 131041044 its reverse (440140131), we get a palindrome (571181175).

The spelling of 131041044 in words is "one hundred thirty-one million, forty-one thousand, forty-four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 223 446 669 892 1338 2007 2676 4014 5441 6021 8028 10882 12042 16323 21764 24084 32646 48969 65292 97938 146907 195876 293814 587628 1213343 2426686 3640029 4853372 7280058 10920087 14560116 21840174 32760261 43680348 65520522 131041044