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20377002212 = 2272313353687
BaseRepresentation
bin10010111110100100…
…000110000011100100
31221121002220222001122
4102332210012003210
5313213003032322
613205553513112
71320650442500
oct227644060344
957532828048
1020377002212
1187073173a6
123b48272798
131bc9826478
14db43c1300
157e3dda442
hex4be9060e4

20377002212 has 36 divisors (see below), whose sum is σ = 42819888384. Its totient is φ = 8451288720.

The previous prime is 20377002169. The next prime is 20377002227. The reversal of 20377002212 is 21220077302.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1670768 + ... + 1682919.

It is an arithmetic number, because the mean of its divisors is an integer number (1189441344).

Almost surely, 220377002212 is an apocalyptic number.

It is an amenable number.

20377002212 is an abundant number, since it is smaller than the sum of its proper divisors (22442886172).

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

20377002212 is a wasteful number, since it uses less digits than its factorization.

20377002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353736 (or 3353727 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

Adding to 20377002212 its reverse (21220077302), we get a palindrome (41597079514).

The spelling of 20377002212 in words is "twenty billion, three hundred seventy-seven million, two thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 31 49 62 98 124 196 217 434 868 1519 3038 6076 3353687 6707374 13414748 23475809 46951618 93903236 103964297 164330663 207928594 328661326 415857188 657322652 727750079 1455500158 2911000316 5094250553 10188501106 20377002212