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30111153 = 3139163443
BaseRepresentation
bin111001011011…
…1010110110001
32002122210201220
41302313112301
530202024103
62553215253
7513640422
oct162672661
962583656
1030111153
1115aa6a56
12a101529
136313767
143ddb649
15299bc53
hex1cb75b1

30111153 has 16 divisors (see below), whose sum is σ = 40776960. Its totient is φ = 19762704.

The previous prime is 30111149. The next prime is 30111167. The reversal of 30111153 is 35111103.

It is not a de Polignac number, because 30111153 - 22 = 30111149 is a prime.

It is a super-3 number, since 3×301111533 (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (30111353) 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, 67750 + ... + 68192.

It is an arithmetic number, because the mean of its divisors is an integer number (2548560).

Almost surely, 230111153 is an apocalyptic number.

It is an amenable number.

30111153 is a deficient number, since it is larger than the sum of its proper divisors (10665807).

30111153 is a wasteful number, since it uses less digits than its factorization.

30111153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748.

The product of its (nonzero) digits is 45, while the sum is 15.

The square root of 30111153 is about 5487.3630279033. The cubic root of 30111153 is about 311.1065311920.

Adding to 30111153 its reverse (35111103), we get a palindrome (65222256).

The spelling of 30111153 in words is "thirty million, one hundred eleven thousand, one hundred fifty-three".

Divisors: 1 3 139 163 417 443 489 1329 22657 61577 67971 72209 184731 216627 10037051 30111153