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10022020010001 = 321113557778889
BaseRepresentation
bin1001000111010110111011…
…1100010101000000010001
31022111002120210202122212100
42101311232330111000101
52303200044110310001
633152015154151013
72053031666343216
oct221655674250021
938432523678770
1010022020010001
11321435102749a
12115a402282469
135790c319533c
142690d57dbb0d
15125a681c5586
hex91d6ef15011

10022020010001 has 6 divisors (see below), whose sum is σ = 14476251125570. Its totient is φ = 6681346673328.

The previous prime is 10022020009993. The next prime is 10022020010017. The reversal of 10022020010001 is 10001002022001.

It can be written as a sum of positive squares in only one way, i.e., 9167179230225 + 854840779776 = 3027735^2 + 924576^2 .

It is not a de Polignac number, because 10022020010001 - 23 = 10022020009993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1113557778889 = 10022020010001 / (1 + 0 + 0 + 2 + 2 + 0 + 2 + 0 + 0 + 1 + 0 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10022820010001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 556778889436 + ... + 556778889453.

Almost surely, 210022020010001 is an apocalyptic number.

It is an amenable number.

10022020010001 is a deficient number, since it is larger than the sum of its proper divisors (4454231115569).

10022020010001 is a wasteful number, since it uses less digits than its factorization.

10022020010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113557778895 (or 1113557778892 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10022020010001 its reverse (10001002022001), we get a palindrome (20023022032002).

The spelling of 10022020010001 in words is "ten trillion, twenty-two billion, twenty million, ten thousand, one".

Divisors: 1 3 9 1113557778889 3340673336667 10022020010001