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1301027388 = 223108418949
BaseRepresentation
bin100110110001100…
…0001101000111100
310100200010001001120
41031203001220330
510131030334023
6333033310540
744145356523
oct11543015074
93320101046
101301027388
1160843a151
12303865450
131797077bb
14c4b0b4ba
15793448e3
hex4d8c1a3c

1301027388 has 12 divisors (see below), whose sum is σ = 3035730600. Its totient is φ = 433675792.

The previous prime is 1301027383. The next prime is 1301027423. The reversal of 1301027388 is 8837201031.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×13010273882 = 3385344528652205088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301027383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54209463 + ... + 54209486.

It is an arithmetic number, because the mean of its divisors is an integer number (252977550).

Almost surely, 21301027388 is an apocalyptic number.

It is an amenable number.

1301027388 is an abundant number, since it is smaller than the sum of its proper divisors (1734703212).

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

1301027388 is a wasteful number, since it uses less digits than its factorization.

1301027388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108418956 (or 108418954 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1301027388 is about 36069.7572489752. The cubic root of 1301027388 is about 1091.6803160606.

The spelling of 1301027388 in words is "one billion, three hundred one million, twenty-seven thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 12 108418949 216837898 325256847 433675796 650513694 1301027388