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1306629948 = 223138375833
BaseRepresentation
bin100110111100001…
…1001011100111100
310101001122200022210
41031320121130330
510133444124243
6333353340420
744244112521
oct11570313474
93331580283
101306629948
11610616468
12305707710
1317a919920
14c5769148
1579a9e933
hex4de1973c

1306629948 has 24 divisors (see below), whose sum is σ = 3283326928. Its totient is φ = 402039936.

The previous prime is 1306629917. The next prime is 1306629953. The reversal of 1306629948 is 8499266031.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1306629897 and 1306629906.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4187761 + ... + 4188072.

Almost surely, 21306629948 is an apocalyptic number.

It is an amenable number.

1306629948 is an abundant number, since it is smaller than the sum of its proper divisors (1976696980).

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

1306629948 is a wasteful number, since it uses less digits than its factorization.

1306629948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8375853 (or 8375851 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 1306629948 is about 36147.3366653755. The cubic root of 1306629948 is about 1093.2450912407.

The spelling of 1306629948 in words is "one billion, three hundred six million, six hundred twenty-nine thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 8375833 16751666 25127499 33503332 50254998 100509996 108885829 217771658 326657487 435543316 653314974 1306629948