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1241222020 = 2251731117763
BaseRepresentation
bin100100111111011…
…1000101110000100
310012111120121111221
41021332320232010
510020223101040
6323055410124
742521133043
oct11176705604
93174517457
101241222020
11587701525
122a7823944
1316a1c82cc
14babc055a
1573e7e74a
hex49fb8b84

1241222020 has 48 divisors (see below), whose sum is σ = 2848946688. Its totient is φ = 452206080.

The previous prime is 1241221957. The next prime is 1241222023. The reversal of 1241222020 is 202221421.

1241222020 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1241221985 and 1241222003.

It is not an unprimeable number, because it can be changed into a prime (1241222023) 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, 48342 + ... + 69421.

It is an arithmetic number, because the mean of its divisors is an integer number (59353056).

Almost surely, 21241222020 is an apocalyptic number.

1241222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1241222020 is an abundant number, since it is smaller than the sum of its proper divisors (1607724668).

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

1241222020 is a wasteful number, since it uses less digits than its factorization.

1241222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117820 (or 117818 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1241222020 is about 35230.9809684601. The cubic root of 1241222020 is about 1074.6898748461.

Adding to 1241222020 its reverse (202221421), we get a palindrome (1443443441).

The spelling of 1241222020 in words is "one billion, two hundred forty-one million, two hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 17 20 31 34 62 68 85 124 155 170 310 340 527 620 1054 2108 2635 5270 10540 117763 235526 471052 588815 1177630 2001971 2355260 3650653 4003942 7301306 8007884 10009855 14602612 18253265 20019710 36506530 40039420 62061101 73013060 124122202 248244404 310305505 620611010 1241222020