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102010020020 = 225113179252163
BaseRepresentation
bin101111100000001000…
…1010110000010110100
3100202022020211221100122
41133000101112002310
53132404031120040
6114510204431112
710240621602116
oct1370021260264
9322266757318
10102010020020
113a297aa6977
121792ab48498
1398090847bc
144d19da73b6
1529c092b1b5
hex17c04560b4

102010020020 has 48 divisors (see below), whose sum is σ = 217325021760. Its totient is φ = 40216813056.

The previous prime is 102010019959. The next prime is 102010020031. The reversal of 102010020020 is 20020010201.

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, 278459 + ... + 530621.

It is an arithmetic number, because the mean of its divisors is an integer number (4527604620).

Almost surely, 2102010020020 is an apocalyptic number.

102010020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102010020020 is an abundant number, since it is smaller than the sum of its proper divisors (115315001740).

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

102010020020 is a wasteful number, since it uses less digits than its factorization.

102010020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252464 (or 252462 counting only the distinct ones).

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

Adding to 102010020020 its reverse (20020010201), we get a palindrome (122030030221).

The spelling of 102010020020 in words is "one hundred two billion, ten million, twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 113 179 226 358 452 565 716 895 1130 1790 2260 3580 20227 40454 80908 101135 202270 252163 404540 504326 1008652 1260815 2521630 5043260 28494419 45137177 56988838 90274354 113977676 142472095 180548708 225685885 284944190 451371770 569888380 902743540 5100501001 10201002002 20402004004 25502505005 51005010010 102010020020