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1307123660 = 225349401467
BaseRepresentation
bin100110111101001…
…0001111111001100
310101002120202120102
41031322101333030
510134110424120
6333412110232
744251240103
oct11572217714
93332522512
101307123660
11610923397
12305905378
1317aa6056b
14c585703a
1579b4ad75
hex4de91fcc

1307123660 has 48 divisors (see below), whose sum is σ = 2765599200. Its totient is φ = 518937600.

The previous prime is 1307123647. The next prime is 1307123681. The reversal of 1307123660 is 663217031.

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, 2798747 + ... + 2799213.

It is an arithmetic number, because the mean of its divisors is an integer number (57616650).

Almost surely, 21307123660 is an apocalyptic number.

1307123660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1307123660 is an abundant number, since it is smaller than the sum of its proper divisors (1458475540).

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

1307123660 is a wasteful number, since it uses less digits than its factorization.

1307123660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226 (or 1224 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 1307123660 is about 36154.1651818985. The cubic root of 1307123660 is about 1093.3827686435.

The spelling of 1307123660 in words is "one billion, three hundred seven million, one hundred twenty-three thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 349 401 467 698 802 934 1396 1604 1745 1868 2005 2335 3490 4010 4670 6980 8020 9340 139949 162983 187267 279898 325966 374534 559796 651932 699745 749068 814915 936335 1399490 1629830 1872670 2798980 3259660 3745340 65356183 130712366 261424732 326780915 653561830 1307123660