Search a number
-
+
20201212202310 = 234524939768151
BaseRepresentation
bin1001001011111011101100…
…00100111100110101000110
32122112012212012201110010000
410211331312010330311012
510121434040310433220
6110544150405542130
74153326604355256
oct445756604746506
978465765643100
1020201212202310
116489316709827
122323169114946
13b36c737aa489
144dba5b327966
1525072e956390
hex125f7613cd46

20201212202310 has 40 divisors (see below), whose sum is σ = 54318815035056. Its totient is φ = 5386989920400.

The previous prime is 20201212202257. The next prime is 20201212202323. The reversal of 20201212202310 is 1320221210202.

20201212202310 is a `hidden beast` number, since 2 + 0 + 201 + 212 + 20 + 231 + 0 = 666.

It is a super-2 number, since 2×202012122023102 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12469883266 + ... + 12469884885.

Almost surely, 220201212202310 is an apocalyptic number.

20201212202310 is an abundant number, since it is smaller than the sum of its proper divisors (34117602832746).

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

20201212202310 is a wasteful number, since it uses less digits than its factorization.

20201212202310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24939768170 (or 24939768161 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20201212202310 its reverse (1320221210202), we get a palindrome (21521433412512).

The spelling of 20201212202310 in words is "twenty trillion, two hundred one billion, two hundred twelve million, two hundred two thousand, three hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 270 405 810 24939768151 49879536302 74819304453 124698840755 149638608906 224457913359 249397681510 374096522265 448915826718 673373740077 748193044530 1122289566795 1346747480154 2020121220231 2244579133590 3366868700385 4040242440462 6733737400770 10100606101155 20201212202310