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9030919919 = 71290131417
BaseRepresentation
bin10000110100100100…
…01110011011101111
3212022101021021011112
420122102032123233
5121443403414134
64052043542235
7436536360410
oct103222163357
925271237145
109030919919
11391479a88a
12190052a97b
13b0bcb7bc8
14619583807
1537cc881ce
hex21a48e6ef

9030919919 has 4 divisors (see below), whose sum is σ = 10321051344. Its totient is φ = 7740788496.

The previous prime is 9030919913. The next prime is 9030919921. The reversal of 9030919919 is 9199190309.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 9030919919 - 232 = 4735952623 is a prime.

It is a super-2 number, since 2×90309199192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9030919913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645065702 + ... + 645065715.

It is an arithmetic number, because the mean of its divisors is an integer number (2580262836).

Almost surely, 29030919919 is an apocalyptic number.

9030919919 is a deficient number, since it is larger than the sum of its proper divisors (1290131425).

9030919919 is a wasteful number, since it uses less digits than its factorization.

9030919919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290131424.

The product of its (nonzero) digits is 177147, while the sum is 50.

The square root of 9030919919 is about 95031.1523606864. The cubic root of 9030919919 is about 2082.4631752747.

The spelling of 9030919919 in words is "nine billion, thirty million, nine hundred nineteen thousand, nine hundred nineteen".

Divisors: 1 7 1290131417 9030919919