Search a number
-
+
131420199 = 3295925603
BaseRepresentation
bin1111101010101…
…01000000100111
3100011021211121210
413311111000213
5232120421244
621012442503
73154024161
oct765250047
9304254553
10131420199
1168201a39
1238019433
13212c5041
141364d931
15b80e4b9
hex7d55027

131420199 has 16 divisors (see below), whose sum is σ = 184348800. Its totient is φ = 83155296.

The previous prime is 131420173. The next prime is 131420269. The reversal of 131420199 is 991024131.

It is not a de Polignac number, because 131420199 - 27 = 131420071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131420699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7669 + ... + 17934.

It is an arithmetic number, because the mean of its divisors is an integer number (11521800).

Almost surely, 2131420199 is an apocalyptic number.

131420199 is a deficient number, since it is larger than the sum of its proper divisors (52928601).

131420199 is a wasteful number, since it uses less digits than its factorization.

131420199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25694.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 131420199 is about 11463.8649241868. The cubic root of 131420199 is about 508.4177529120.

The spelling of 131420199 in words is "one hundred thirty-one million, four hundred twenty thousand, one hundred ninety-nine".

Divisors: 1 3 29 59 87 177 1711 5133 25603 76809 742487 1510577 2227461 4531731 43806733 131420199