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1030218269221 = 4721919537643
BaseRepresentation
bin11101111110111011100…
…10110100001000100101
310122111011200102112221101
432333131302310020211
5113334341334103341
62105135320520101
7134300524542211
oct16773562641045
93574150375841
101030218269221
11367a0539a909
121477b6020031
13761c294360b
1437c1186b941
151bbe9607831
hexefddcb4225

1030218269221 has 4 divisors (see below), whose sum is σ = 1052137806912. Its totient is φ = 1008298731532.

The previous prime is 1030218269177. The next prime is 1030218269261. The reversal of 1030218269221 is 1229628120301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1030218269221 is a prime.

It is a super-2 number, since 2×10302182692212 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030218269261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10959768775 + ... + 10959768868.

It is an arithmetic number, because the mean of its divisors is an integer number (263034451728).

Almost surely, 21030218269221 is an apocalyptic number.

It is an amenable number.

1030218269221 is a deficient number, since it is larger than the sum of its proper divisors (21919537691).

1030218269221 is an equidigital number, since it uses as much as digits as its factorization.

1030218269221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21919537690.

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 1030218269221 in words is "one trillion, thirty billion, two hundred eighteen million, two hundred sixty-nine thousand, two hundred twenty-one".

Divisors: 1 47 21919537643 1030218269221