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20213000101020 = 22351923974187037
BaseRepresentation
bin1001001100010001101001…
…01100001101110010011100
32122120100021201201202012010
410212020310230031302130
510122132211011213040
6110553420221311220
74154224662014016
oct446106454156234
978510251652163
1020213000101020
116493315672581
1223254b8a05510
13b38101a0b87c
144dc458ad31b6
15250bbe77be80
hex126234b0dc9c

20213000101020 has 96 divisors (see below), whose sum is σ = 59824427443200. Its totient is φ = 5085076195584.

The previous prime is 20213000101003. The next prime is 20213000101061. The reversal of 20213000101020 is 2010100031202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20213000100987 and 20213000101005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36821059 + ... + 37365978.

It is an arithmetic number, because the mean of its divisors is an integer number (623171119200).

Almost surely, 220213000101020 is an apocalyptic number.

20213000101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20213000101020 is an abundant number, since it is smaller than the sum of its proper divisors (39611427342180).

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

20213000101020 is a wasteful number, since it uses less digits than its factorization.

20213000101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74187307 (or 74187305 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20213000101020 its reverse (2010100031202), we get a palindrome (22223100132222).

The spelling of 20213000101020 in words is "twenty trillion, two hundred thirteen billion, one hundred one thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 76 95 114 190 228 239 285 380 478 570 717 956 1140 1195 1434 2390 2868 3585 4541 4780 7170 9082 13623 14340 18164 22705 27246 45410 54492 68115 90820 136230 272460 74187037 148374074 222561111 296748148 370935185 445122222 741870370 890244444 1112805555 1409553703 1483740740 2225611110 2819107406 4228661109 4451222220 5638214812 7047768515 8457322218 14095537030 16914644436 17730701843 21143305545 28191074060 35461403686 42286611090 53192105529 70922807372 84573222180 88653509215 106384211058 177307018430 212768422116 265960527645 336883335017 354614036860 531921055290 673766670034 1010650005051 1063842110580 1347533340068 1684416675085 2021300010102 3368833350170 4042600020204 5053250025255 6737666700340 10106500050510 20213000101020