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32101212020 = 22513117968449
BaseRepresentation
bin11101111001011000…
…011001111101110100
310001212012002112101112
4131321120121331310
51011220402241040
622425212214152
72214332541263
oct357130317564
9101765075345
1032101212020
111268332a799
12627a76a358
1330477b8817
1417a752c5da
15c7d330365
hex779619f74

32101212020 has 48 divisors (see below), whose sum is σ = 68307624000. Its totient is φ = 12671093760.

The previous prime is 32101211993. The next prime is 32101212029. The reversal of 32101212020 is 2021210123.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 32101211986 and 32101212004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32101212029) 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, 434756 + ... + 503204.

It is an arithmetic number, because the mean of its divisors is an integer number (1423075500).

Almost surely, 232101212020 is an apocalyptic number.

It is an amenable number.

32101212020 is an abundant number, since it is smaller than the sum of its proper divisors (36206411980).

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

32101212020 is a wasteful number, since it uses less digits than its factorization.

32101212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68768 (or 68766 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 32101212020 its reverse (2021210123), we get a palindrome (34122422143).

The spelling of 32101212020 in words is "thirty-two billion, one hundred one million, two hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 131 179 262 358 524 655 716 895 1310 1790 2620 3580 23449 46898 68449 93796 117245 136898 234490 273796 342245 468980 684490 1368980 8966819 12252371 17933638 24504742 35867276 44834095 49009484 61261855 89668190 122523710 179336380 245047420 1605060601 3210121202 6420242404 8025303005 16050606010 32101212020