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145240579 = 1119809859
BaseRepresentation
bin10001010100000…
…11001000000011
3101010021222121201
420222003020003
5244140144304
622225002031
73412344631
oct1052031003
9333258551
10145240579
1174a91440
1240783317
1324123793
141540a351
15cb3e3a4
hex8a83203

145240579 has 16 divisors (see below), whose sum is σ = 167184000. Its totient is φ = 124787520.

The previous prime is 145240567. The next prime is 145240583. The reversal of 145240579 is 975042541.

It is not a de Polignac number, because 145240579 - 25 = 145240547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145240519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168652 + ... + 169510.

It is an arithmetic number, because the mean of its divisors is an integer number (10449000).

Almost surely, 2145240579 is an apocalyptic number.

145240579 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

145240579 is a deficient number, since it is larger than the sum of its proper divisors (21943421).

145240579 is a wasteful number, since it uses less digits than its factorization.

145240579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 145240579 is about 12051.5799379169. The cubic root of 145240579 is about 525.6491791004.

The spelling of 145240579 in words is "one hundred forty-five million, two hundred forty thousand, five hundred seventy-nine".

Divisors: 1 11 19 209 809 859 8899 9449 15371 16321 169081 179531 694931 7644241 13203689 145240579