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131420206 = 2232856961
BaseRepresentation
bin1111101010101…
…01000000101110
3100011021211122001
413311111000232
5232120421311
621012442514
73154024201
oct765250056
9304254561
10131420206
1168201a45
123801943a
13212c5048
141364d938
15b80e4c1
hex7d5502e

131420206 has 8 divisors (see below), whose sum is σ = 205701264. Its totient is φ = 62853120.

The previous prime is 131420173. The next prime is 131420269. The reversal of 131420206 is 602024131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1428435 + ... + 1428526.

It is an arithmetic number, because the mean of its divisors is an integer number (25712658).

Almost surely, 2131420206 is an apocalyptic number.

131420206 is a deficient number, since it is larger than the sum of its proper divisors (74281058).

131420206 is a wasteful number, since it uses less digits than its factorization.

131420206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2856986.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 131420206 is about 11463.8652294939. The cubic root of 131420206 is about 508.4177619388.

Adding to 131420206 its reverse (602024131), we get a palindrome (733444337).

The spelling of 131420206 in words is "one hundred thirty-one million, four hundred twenty thousand, two hundred six".

Divisors: 1 2 23 46 2856961 5713922 65710103 131420206