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20202454212 = 22337283160781
BaseRepresentation
bin10010110100001010…
…001111110011000100
31221010221111000012220
4102310022033303010
5312333312013322
613140400412340
71313431012263
oct226412176304
957127430186
1020202454212
118627838956
123ab99170b0
131b9c611025
14d991465da
157d390c55c
hex4b428fcc4

20202454212 has 48 divisors (see below), whose sum is σ = 48584461632. Its totient is φ = 6528954240.

The previous prime is 20202454211. The next prime is 20202454241. The reversal of 20202454212 is 21245420202.

It is not an unprimeable number, because it can be changed into a prime (20202454211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45262 + ... + 206042.

It is an arithmetic number, because the mean of its divisors is an integer number (1012176284).

Almost surely, 220202454212 is an apocalyptic number.

It is an amenable number.

20202454212 is an abundant number, since it is smaller than the sum of its proper divisors (28382007420).

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

20202454212 is a wasteful number, since it uses less digits than its factorization.

20202454212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161108 (or 161106 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 20202454212 its reverse (21245420202), we get a palindrome (41447874414).

The spelling of 20202454212 in words is "twenty billion, two hundred two million, four hundred fifty-four thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 283 444 566 849 1132 1698 3396 10471 20942 31413 41884 62826 125652 160781 321562 482343 643124 964686 1929372 5948897 11897794 17846691 23795588 35693382 45501023 71386764 91002046 136503069 182004092 273006138 546012276 1683537851 3367075702 5050613553 6734151404 10101227106 20202454212