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131004413 = 7311031627
BaseRepresentation
bin1111100111011…
…11011111111101
3100010111201021022
413303233133331
5232014120123
620555513525
73150343031
oct763573775
9303451238
10131004413
1167a48611
1237a588a5
13211aaa07
14135821c1
15b77b1c8
hex7cef7fd

131004413 has 8 divisors (see below), whose sum is σ = 133001088. Its totient is φ = 129013344.

The previous prime is 131004337. The next prime is 131004421. The reversal of 131004413 is 314400131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131004413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131004391 and 131004400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131004493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79706 + ... + 81332.

It is an arithmetic number, because the mean of its divisors is an integer number (16625136).

Almost surely, 2131004413 is an apocalyptic number.

It is an amenable number.

131004413 is a deficient number, since it is larger than the sum of its proper divisors (1996675).

131004413 is a wasteful number, since it uses less digits than its factorization.

131004413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2803.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 131004413 is about 11445.7159234362. The cubic root of 131004413 is about 507.8810106849.

Adding to 131004413 its reverse (314400131), we get a palindrome (445404544).

The spelling of 131004413 in words is "one hundred thirty-one million, four thousand, four hundred thirteen".

Divisors: 1 73 1103 1627 80519 118771 1794581 131004413