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1005550000049 = 7251572310757
BaseRepresentation
bin11101010000111110111…
…00110101011110110001
310120010111111201122021102
432220133130311132301
5112433331300000144
62045535430134145
7132435315655130
oct16503734653661
93503444648242
101005550000049
113584a68400a1
12142a707b1355
1373a9106793a
1436951597917
151b253b10b4e
hexea1f7357b1

1005550000049 has 8 divisors (see below), whose sum is σ = 1153778488128. Its totient is φ = 858466134000.

The previous prime is 1005550000043. The next prime is 1005550000067. The reversal of 1005550000049 is 9400000555001.

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

It is a cyclic number.

It is not a de Polignac number, because 1005550000049 - 28 = 1005549999793 is a prime.

It is a super-2 number, since 2×10055500000492 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1005549999976 and 1005550000030.

It is not an unprimeable number, because it can be changed into a prime (1005550000043) 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, 286153622 + ... + 286157135.

It is an arithmetic number, because the mean of its divisors is an integer number (144222311016).

Almost surely, 21005550000049 is an apocalyptic number.

It is an amenable number.

1005550000049 is a deficient number, since it is larger than the sum of its proper divisors (148228488079).

1005550000049 is an equidigital number, since it uses as much as digits as its factorization.

1005550000049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572311015.

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 1005550000049 in words is "one trillion, five billion, five hundred fifty million, forty-nine", and thus it is an aban number.

Divisors: 1 7 251 1757 572310757 4006175299 143650000007 1005550000049