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1307435980 = 225193440621
BaseRepresentation
bin100110111101101…
…1110001111001100
310101010011121222211
41031323132033030
510134200422410
6333422520204
744254010464
oct11573361714
93333147884
101307435980
11611017004
12305a36064
1317ab3c776
14c58d8ba4
1579bad68a
hex4dede3cc

1307435980 has 24 divisors (see below), whose sum is σ = 2890122480. Its totient is φ = 495449280.

The previous prime is 1307435963. The next prime is 1307435981. The reversal of 1307435980 is 895347031.

It is not an unprimeable number, because it can be changed into a prime (1307435981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1719931 + ... + 1720690.

It is an arithmetic number, because the mean of its divisors is an integer number (120421770).

Almost surely, 21307435980 is an apocalyptic number.

1307435980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1307435980 is an abundant number, since it is smaller than the sum of its proper divisors (1582686500).

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

1307435980 is a wasteful number, since it uses less digits than its factorization.

1307435980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3440649 (or 3440647 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 1307435980 is about 36158.4842049553. The cubic root of 1307435980 is about 1093.4698448508.

The spelling of 1307435980 in words is "one billion, three hundred seven million, four hundred thirty-five thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 3440621 6881242 13762484 17203105 34406210 65371799 68812420 130743598 261487196 326858995 653717990 1307435980