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20020010103100 = 2252740973698021
BaseRepresentation
bin1001000110101010001011…
…00101110011000100111100
32121212220010221000001202101
410203111011211303010330
510111001440041244400
6110325022104034444
74134253341054610
oct443250545630474
977786127001671
1020020010103100
116419490867727
1222b4018a62a24
13b22b56ab8127
144d2d8ba13340
1524ab7694a56a
hex12354597313c

20020010103100 has 72 divisors (see below), whose sum is σ = 49650907951008. Its totient is φ = 6863826105600.

The previous prime is 20020010103077. The next prime is 20020010103103. The reversal of 20020010103100 is 130101002002.

It is a super-2 number, since 2×200200101031002 (a number of 27 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020010103103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28332090 + ... + 29030110.

It is an arithmetic number, because the mean of its divisors is an integer number (689595943764).

Almost surely, 220020010103100 is an apocalyptic number.

20020010103100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020010103100 is an abundant number, since it is smaller than the sum of its proper divisors (29630897847908).

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

20020010103100 is a wasteful number, since it uses less digits than its factorization.

20020010103100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739015 (or 739008 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20020010103100 its reverse (130101002002), we get a palindrome (20150111105102).

The spelling of 20020010103100 in words is "twenty trillion, twenty billion, ten million, one hundred three thousand, one hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 140 175 350 700 40973 81946 163892 204865 286811 409730 573622 698021 819460 1024325 1147244 1396042 1434055 2048650 2792084 2868110 3490105 4097300 4886147 5736220 6980210 7170275 9772294 13960420 14340550 17450525 19544588 24430735 28681100 34901050 48861470 69802100 97722940 122153675 244307350 488614700 28600014433 57200028866 114400057732 143000072165 200200101031 286000144330 400400202062 572000288660 715000360825 800800404124 1001000505155 1430000721650 2002001010310 2860001443300 4004002020620 5005002525775 10010005051550 20020010103100