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1302222020 = 225115919191
BaseRepresentation
bin100110110011110…
…0101010011000100
310100202100201210012
41031213211103010
510131332101040
6333115045352
744161463441
oct11547452304
93322321705
101302222020
11609085750
12304140858
13179a35498
14c4d3c9c8
15794cd865
hex4d9e54c4

1302222020 has 24 divisors (see below), whose sum is σ = 2983272768. Its totient is φ = 473535200.

The previous prime is 1302222001. The next prime is 1302222043. The reversal of 1302222020 is 202222031.

It is a junction number, because it is equal to n+sod(n) for n = 1302221986 and 1302222004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2959376 + ... + 2959815.

It is an arithmetic number, because the mean of its divisors is an integer number (124303032).

Almost surely, 21302222020 is an apocalyptic number.

1302222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1302222020 is an abundant number, since it is smaller than the sum of its proper divisors (1681050748).

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

1302222020 is a wasteful number, since it uses less digits than its factorization.

1302222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5919211 (or 5919209 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1302222020 is about 36086.3134720076. The cubic root of 1302222020 is about 1092.0143488121.

Adding to 1302222020 its reverse (202222031), we get a palindrome (1504444051).

It can be divided in two parts, 1302 and 222020, that added together give a palindrome (223322).

The spelling of 1302222020 in words is "one billion, three hundred two million, two hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 5919191 11838382 23676764 29595955 59191910 65111101 118383820 130222202 260444404 325555505 651111010 1302222020