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1202131112506 = 25192911574757
BaseRepresentation
bin10001011111100100100…
…110010001001000111010
311020220220120202211202021
4101133210212101020322
5124143431031100011
62320130145425054
7152564633601022
oct21374446211072
94226816684667
101202131112506
114239037454a5
12174b9333b18a
138948bc7a01c
144227d592a82
152140bd4b471
hex117e499123a

1202131112506 has 8 divisors (see below), whose sum is σ = 1803231548820. Its totient is φ = 601053929568.

The previous prime is 1202131112489. The next prime is 1202131112531. The reversal of 1202131112506 is 6052111312021.

It can be written as a sum of positive squares in 2 ways, for example, as 1191789239481 + 10341873025 = 1091691^2 + 101695^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5683521 + ... + 5891236.

Almost surely, 21202131112506 is an apocalyptic number.

1202131112506 is a deficient number, since it is larger than the sum of its proper divisors (601100436314).

1202131112506 is a wasteful number, since it uses less digits than its factorization.

1202131112506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11626688.

The product of its (nonzero) digits is 720, while the sum is 25.

Adding to 1202131112506 its reverse (6052111312021), we get a palindrome (7254242424527).

The spelling of 1202131112506 in words is "one trillion, two hundred two billion, one hundred thirty-one million, one hundred twelve thousand, five hundred six".

Divisors: 1 2 51929 103858 11574757 23149514 601065556253 1202131112506