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9145730901 = 311532644039
BaseRepresentation
bin10001000010010000…
…01100011101010101
3212121101022021020010
420201020030131111
5122212301342101
64111304430433
7442432300326
oct104110143525
925541267203
109145730901
113973587a9a
121932a78419
13b29a15cb8
1462a90c44d
15387db62d6
hex22120c755

9145730901 has 8 divisors (see below), whose sum is σ = 12204888640. Its totient is φ = 6091863552.

The previous prime is 9145730861. The next prime is 9145730903. The reversal of 9145730901 is 1090375419.

It is a happy number.

9145730901 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 9145730901 - 26 = 9145730837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9145730901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9145730903) 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, 1318561 + ... + 1325478.

It is an arithmetic number, because the mean of its divisors is an integer number (1525611080).

Almost surely, 29145730901 is an apocalyptic number.

It is an amenable number.

9145730901 is a deficient number, since it is larger than the sum of its proper divisors (3059157739).

9145730901 is a wasteful number, since it uses less digits than its factorization.

9145730901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2645195.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 9145730901 is about 95633.3148071319. The cubic root of 9145730901 is about 2091.2508938403.

The spelling of 9145730901 in words is "nine billion, one hundred forty-five million, seven hundred thirty thousand, nine hundred one".

Divisors: 1 3 1153 3459 2644039 7932117 3048576967 9145730901