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131415425 = 5211514567
BaseRepresentation
bin1111101010100…
…11110110000001
3100011021121001222
413311103312001
5232120243200
621012404425
73154004231
oct765236601
9304247058
10131415425
11681a9399
1238016715
13212c2b0b
141364bcc1
15b80cd85
hex7d53d81

131415425 has 12 divisors (see below), whose sum is σ = 163132416. Its totient is φ = 105018000.

The previous prime is 131415413. The next prime is 131415463. The reversal of 131415425 is 524514131.

It is not a de Polignac number, because 131415425 - 222 = 127221121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131415394 and 131415403.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26492 + ... + 31058.

It is an arithmetic number, because the mean of its divisors is an integer number (13594368).

Almost surely, 2131415425 is an apocalyptic number.

It is an amenable number.

131415425 is a deficient number, since it is larger than the sum of its proper divisors (31716991).

131415425 is a wasteful number, since it uses less digits than its factorization.

131415425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5728 (or 5723 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 131415425 is about 11463.6567028152. The cubic root of 131415425 is about 508.4115965378.

Adding to 131415425 its reverse (524514131), we get a palindrome (655929556).

The spelling of 131415425 in words is "one hundred thirty-one million, four hundred fifteen thousand, four hundred twenty-five".

Divisors: 1 5 25 1151 4567 5755 22835 28775 114175 5256617 26283085 131415425