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145904659 = 1717214987
BaseRepresentation
bin10001011001001…
…01010000010011
3101011112201120021
420230211100103
5244322422114
622251124311
73421112005
oct1054452023
9334481507
10145904659
11753a536a
1240a43697
13242c6b24
1415540375
15cc21024
hex8b25413

145904659 has 8 divisors (see below), whose sum is σ = 154608048. Its totient is φ = 137214720.

The previous prime is 145904651. The next prime is 145904669. The reversal of 145904659 is 956409541.

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 145904659 - 23 = 145904651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145904651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26764 + ... + 31750.

It is an arithmetic number, because the mean of its divisors is an integer number (19326006).

Almost surely, 2145904659 is an apocalyptic number.

145904659 is a deficient number, since it is larger than the sum of its proper divisors (8703389).

145904659 is a wasteful number, since it uses less digits than its factorization.

145904659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6725.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 145904659 is about 12079.1000906524. The cubic root of 145904659 is about 526.4490988773.

The spelling of 145904659 in words is "one hundred forty-five million, nine hundred four thousand, six hundred fifty-nine".

Divisors: 1 17 1721 4987 29257 84779 8582627 145904659