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131002514 = 265501257
BaseRepresentation
bin1111100111011…
…11000010010010
3100010111121122222
413303233002102
5232014040024
620555501042
73150334346
oct763570222
9303447588
10131002514
1167a47145
1237a57782
13211a9ba6
1413581626
15b77a85e
hex7cef092

131002514 has 4 divisors (see below), whose sum is σ = 196503774. Its totient is φ = 65501256.

The previous prime is 131002471. The next prime is 131002517. The reversal of 131002514 is 415200131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 110145025 + 20857489 = 10495^2 + 4567^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131002492 and 131002501.

It is not an unprimeable number, because it can be changed into a prime (131002517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32750627 + ... + 32750630.

Almost surely, 2131002514 is an apocalyptic number.

131002514 is a deficient number, since it is larger than the sum of its proper divisors (65501260).

131002514 is an equidigital number, since it uses as much as digits as its factorization.

131002514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65501259.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 131002514 is about 11445.6329663326. The cubic root of 131002514 is about 507.8785566437.

Adding to 131002514 its reverse (415200131), we get a palindrome (546202645).

The spelling of 131002514 in words is "one hundred thirty-one million, two thousand, five hundred fourteen".

Divisors: 1 2 65501257 131002514