Search a number
-
+
131026032 = 24332313187
BaseRepresentation
bin1111100111101…
…00110001110000
3100010112210221000
413303310301300
5232020313112
621000202000
73150463044
oct763646160
9303483830
10131026032
1167a62885
1237a69300
13211b77c7
141358a024
15b7827dc
hex7cf4c70

131026032 has 80 divisors (see below), whose sum is σ = 392474880. Its totient is φ = 41773248.

The previous prime is 131025977. The next prime is 131026087. The reversal of 131026032 is 230620131.

It is an interprime number because it is at equal distance from previous prime (131025977) and next prime (131026087).

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

It is a junction number, because it is equal to n+sod(n) for n = 131025996 and 131026014.

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, 3343 + ... + 16529.

It is an arithmetic number, because the mean of its divisors is an integer number (4905936).

Almost surely, 2131026032 is an apocalyptic number.

131026032 is a gapful number since it is divisible by the number (12) 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 131026032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196237440).

131026032 is an abundant number, since it is smaller than the sum of its proper divisors (261448848).

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

131026032 is a wasteful number, since it uses less digits than its factorization.

131026032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13227 (or 13215 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 131026032 is about 11446.6602989693. The cubic root of 131026032 is about 507.9089468320.

Adding to 131026032 its reverse (230620131), we get a palindrome (361646163).

The spelling of 131026032 in words is "one hundred thirty-one million, twenty-six thousand, thirty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 23 24 27 36 46 48 54 69 72 92 108 138 144 184 207 216 276 368 414 432 552 621 828 1104 1242 1656 2484 3312 4968 9936 13187 26374 39561 52748 79122 105496 118683 158244 210992 237366 303301 316488 356049 474732 606602 632976 712098 909903 949464 1213204 1424196 1819806 1898928 2426408 2729709 2848392 3639612 4852816 5459418 5696784 7279224 8189127 10918836 14558448 16378254 21837672 32756508 43675344 65513016 131026032