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1020211232005 = 5761347551211
BaseRepresentation
bin11101101100010010101…
…00111111110100000101
310121112100021102101120101
432312021110333310011
5113203343033411010
62100402323204101
7133464533250460
oct16661124776405
93545307371511
101020211232005
1136373a709719
12145882816631
1375289661014
14375427d62d7
151b810d0973a
hexed8953fd05

1020211232005 has 16 divisors (see below), whose sum is σ = 1401429320064. Its totient is φ = 698432172480.

The previous prime is 1020211231997. The next prime is 1020211232041. The reversal of 1020211232005 is 5002321120201.

It is not a de Polignac number, because 1020211232005 - 23 = 1020211231997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23754151 + ... + 23797060.

It is an arithmetic number, because the mean of its divisors is an integer number (87589332504).

Almost surely, 21020211232005 is an apocalyptic number.

It is an amenable number.

1020211232005 is a deficient number, since it is larger than the sum of its proper divisors (381218088059).

1020211232005 is an equidigital number, since it uses as much as digits as its factorization.

1020211232005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47551836.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 1020211232005 its reverse (5002321120201), we get a palindrome (6022532352206).

The spelling of 1020211232005 in words is "one trillion, twenty billion, two hundred eleven million, two hundred thirty-two thousand, five".

Divisors: 1 5 7 35 613 3065 4291 21455 47551211 237756055 332858477 1664292385 29148892343 145744461715 204042246401 1020211232005