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30106569 = 397307337
BaseRepresentation
bin111001011011…
…0001111001001
32002122120110010
41302312033021
530201402234
62553142133
7513621153
oct162661711
962576403
1030106569
1115aa3569
12a0ba949
13631164c
143dd9ad3
15299a6e9
hex1cb63c9

30106569 has 16 divisors (see below), whose sum is σ = 40808768. Its totient is φ = 19740672.

The previous prime is 30106543. The next prime is 30106603. The reversal of 30106569 is 96560103.

It is a happy number.

It is not a de Polignac number, because 30106569 - 25 = 30106537 is a prime.

It is a super-2 number, since 2×301065692 = 1812810993903522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30106529) 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, 89169 + ... + 89505.

It is an arithmetic number, because the mean of its divisors is an integer number (2550548).

Almost surely, 230106569 is an apocalyptic number.

It is an amenable number.

30106569 is a deficient number, since it is larger than the sum of its proper divisors (10702199).

30106569 is a wasteful number, since it uses less digits than its factorization.

30106569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 30106569 is about 5486.9453250420. The cubic root of 30106569 is about 311.0907431913.

The spelling of 30106569 in words is "thirty million, one hundred six thousand, five hundred sixty-nine".

Divisors: 1 3 97 291 307 337 921 1011 29779 32689 89337 98067 103459 310377 10035523 30106569