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1307450493 = 32145272277
BaseRepresentation
bin100110111101110…
…0001110001111101
310101010012100220100
41031323201301331
510134201403433
6333423111313
744254101006
oct11573416175
93333170810
101307450493
116110269a8
12305a42539
1317ab4625b
14c59001ad
1579bb2b13
hex4dee1c7d

1307450493 has 6 divisors (see below), whose sum is σ = 1888539614. Its totient is φ = 871633656.

The previous prime is 1307450461. The next prime is 1307450519. The reversal of 1307450493 is 3940547031.

It can be written as a sum of positive squares in only one way, i.e., 950920569 + 356529924 = 30837^2 + 18882^2 .

It is not a de Polignac number, because 1307450493 - 25 = 1307450461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307450453) 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 5 ways as a sum of consecutive naturals, for example, 72636130 + ... + 72636147.

Almost surely, 21307450493 is an apocalyptic number.

It is an amenable number.

1307450493 is a deficient number, since it is larger than the sum of its proper divisors (581089121).

1307450493 is a wasteful number, since it uses less digits than its factorization.

1307450493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145272283 (or 145272280 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 1307450493 is about 36158.6848903552. The cubic root of 1307450493 is about 1093.4738908026.

The spelling of 1307450493 in words is "one billion, three hundred seven million, four hundred fifty thousand, four hundred ninety-three".

Divisors: 1 3 9 145272277 435816831 1307450493