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10202000111020 = 2253533144381547
BaseRepresentation
bin1001010001110101011010…
…0101111011010110101100
31100010022010221002002211201
42110131112211323112230
52314122144012023040
633410422324255244
72102033034064624
oct224352645732654
940108127062751
1010202000111020
11328370a108233
121189271241524
13590076960433
14273acaad7884
1512a59dc9ca9a
hex9475697b5ac

10202000111020 has 24 divisors (see below), whose sum is σ = 21430264406544. Its totient is φ = 4079644963776.

The previous prime is 10202000111011. The next prime is 10202000111053. The reversal of 10202000111020 is 2011100020201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10202000110988 and 10202000111006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72120114 + ... + 72261433.

It is an arithmetic number, because the mean of its divisors is an integer number (892927683606).

Almost surely, 210202000111020 is an apocalyptic number.

10202000111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10202000111020 is an abundant number, since it is smaller than the sum of its proper divisors (11228264295524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10202000111020 is a wasteful number, since it uses less digits than its factorization.

10202000111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144385089 (or 144385087 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10202000111020 its reverse (2011100020201), we get a palindrome (12213100131221).

The spelling of 10202000111020 in words is "ten trillion, two hundred two billion, one hundred eleven thousand, twenty".

Divisors: 1 2 4 5 10 20 3533 7066 14132 17665 35330 70660 144381547 288763094 577526188 721907735 1443815470 2887630940 510100005551 1020200011102 2040400022204 2550500027755 5101000055510 10202000111020