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131764024 = 23797127191
BaseRepresentation
bin1111101101010…
…00111100111000
3100011221022021001
413312220330320
5232212422044
621024054344
73156655450
oct766507470
9304838231
10131764024
1168417297
12381643b4
13213b56a2
14136dcd60
15b87b2d4
hex7da8f38

131764024 has 64 divisors (see below), whose sum is σ = 289013760. Its totient is φ = 55157760.

The previous prime is 131764019. The next prime is 131764091. The reversal of 131764024 is 420467131.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 131763983 and 131764001.

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, 689769 + ... + 689959.

It is an arithmetic number, because the mean of its divisors is an integer number (4515840).

Almost surely, 2131764024 is an apocalyptic number.

131764024 is a gapful number since it is divisible by the number (14) 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 131764024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144506880).

131764024 is an abundant number, since it is smaller than the sum of its proper divisors (157249736).

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

131764024 is a wasteful number, since it uses less digits than its factorization.

131764024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 131764024 is about 11478.8511620284. The cubic root of 131764024 is about 508.8607454701.

It can be divided in two parts, 1317 and 64024, that added together give a triangular number (65341 = T361).

The spelling of 131764024 in words is "one hundred thirty-one million, seven hundred sixty-four thousand, twenty-four".

Divisors: 1 2 4 7 8 14 28 56 97 127 191 194 254 382 388 508 679 764 776 889 1016 1337 1358 1528 1778 2674 2716 3556 5348 5432 7112 10696 12319 18527 24257 24638 37054 48514 49276 74108 86233 97028 98552 129689 148216 169799 172466 194056 259378 339598 344932 518756 679196 689864 1037512 1358392 2352929 4705858 9411716 16470503 18823432 32941006 65882012 131764024