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131102242 = 21910134159
BaseRepresentation
bin1111101000001…
…11011000100010
3100010200200110121
413310013120202
5232030232432
621001550454
73151231165
oct764073042
9303620417
10131102242
1168005067
1237aa542a
13212133bb
14135a9adc
15b79a197
hex7d07622

131102242 has 16 divisors (see below), whose sum is σ = 209059200. Its totient is φ = 61484400.

The previous prime is 131102221. The next prime is 131102263. The reversal of 131102242 is 242201131.

It is an interprime number because it is at equal distance from previous prime (131102221) and next prime (131102263).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13242 + ... + 20917.

It is an arithmetic number, because the mean of its divisors is an integer number (13066200).

Almost surely, 2131102242 is an apocalyptic number.

131102242 is a deficient number, since it is larger than the sum of its proper divisors (77956958).

131102242 is a wasteful number, since it uses less digits than its factorization.

131102242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34281.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 131102242 is about 11449.9887336189. The cubic root of 131102242 is about 508.0074011570.

Adding to 131102242 its reverse (242201131), we get a palindrome (373303373).

The spelling of 131102242 in words is "one hundred thirty-one million, one hundred two thousand, two hundred forty-two".

Divisors: 1 2 19 38 101 202 1919 3838 34159 68318 649021 1298042 3450059 6900118 65551121 131102242