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1078472509 = 1967783843
BaseRepresentation
bin100000001001000…
…0010111100111101
32210011100002011021
41000102002330331
54202042110014
6255003224141
735503602502
oct10022027475
92704302137
101078472509
115038513a4
12261218051
1314258421a
14a33374a9
1564a32624
hex40482f3d

1078472509 has 8 divisors (see below), whose sum is σ = 1136924640. Its totient is φ = 1020189456.

The previous prime is 1078472501. The next prime is 1078472513. The reversal of 1078472509 is 9052748701.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1078472509 - 23 = 1078472501 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 (1078472501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29059 + ... + 54784.

It is an arithmetic number, because the mean of its divisors is an integer number (142115580).

Almost surely, 21078472509 is an apocalyptic number.

1078472509 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1078472509 is a deficient number, since it is larger than the sum of its proper divisors (58452131).

1078472509 is an equidigital number, since it uses as much as digits as its factorization.

1078472509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84539.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 1078472509 is about 32840.1051916707. The cubic root of 1078472509 is about 1025.5016411086.

The spelling of 1078472509 in words is "one billion, seventy-eight million, four hundred seventy-two thousand, five hundred nine".

Divisors: 1 19 677 12863 83843 1593017 56761711 1078472509