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1352388380 = 225729332969
BaseRepresentation
bin101000010011011…
…1100111100011100
310111020202110002112
41100212330330130
510232202412010
6342110213152
745341053160
oct12046747434
93436673075
101352388380
1163442a452
12318ab41b8
1318724b515
14cb87aca0
157dadca05
hex509bcf1c

1352388380 has 48 divisors (see below), whose sum is σ = 3256908480. Its totient is φ = 462079488.

The previous prime is 1352388377. The next prime is 1352388391. The reversal of 1352388380 is 838832531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24536 + ... + 57504.

It is an arithmetic number, because the mean of its divisors is an integer number (67852260).

Almost surely, 21352388380 is an apocalyptic number.

1352388380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1352388380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1628454240).

1352388380 is an abundant number, since it is smaller than the sum of its proper divisors (1904520100).

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

1352388380 is a wasteful number, since it uses less digits than its factorization.

1352388380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33278 (or 33276 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 1352388380 is about 36774.8335142391. The cubic root of 1352388380 is about 1105.8608335437.

The spelling of 1352388380 in words is "one billion, three hundred fifty-two million, three hundred eighty-eight thousand, three hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 293 586 1172 1465 2051 2930 4102 5860 8204 10255 20510 32969 41020 65938 131876 164845 230783 329690 461566 659380 923132 1153915 2307830 4615660 9659917 19319834 38639668 48299585 67619419 96599170 135238838 193198340 270477676 338097095 676194190 1352388380