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131701290 = 23575311833
BaseRepresentation
bin1111101100110…
…01101000101010
3100011211010012120
413312121220222
5232203420130
621022452110
73156304530
oct766315052
9304733176
10131701290
1168384146
1238134036
1321392c76
14136c4150
15b867910
hex7d99a2a

131701290 has 64 divisors (see below), whose sum is σ = 368084736. Its totient is φ = 29532672.

The previous prime is 131701279. The next prime is 131701301. The reversal of 131701290 is 92107131.

It is an interprime number because it is at equal distance from previous prime (131701279) and next prime (131701301).

It is a self number, because there is not a number n which added to its sum of digits gives 131701290.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5214 + ... + 17046.

It is an arithmetic number, because the mean of its divisors is an integer number (5751324).

Almost surely, 2131701290 is an apocalyptic number.

131701290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 131701290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184042368).

131701290 is an abundant number, since it is smaller than the sum of its proper divisors (236383446).

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

131701290 is a wasteful number, since it uses less digits than its factorization.

131701290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11903.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 131701290 is about 11476.1182461667. The cubic root of 131701290 is about 508.7799749718.

The spelling of 131701290 in words is "one hundred thirty-one million, seven hundred one thousand, two hundred ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 53 70 105 106 159 210 265 318 371 530 742 795 1113 1590 1855 2226 3710 5565 11130 11833 23666 35499 59165 70998 82831 118330 165662 177495 248493 354990 414155 496986 627149 828310 1242465 1254298 1881447 2484930 3135745 3762894 4390043 6271490 8780086 9407235 13170129 18814470 21950215 26340258 43900430 65850645 131701290