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30136154 = 231975011
BaseRepresentation
bin111001011110…
…1011101011010
32002201002000212
41302331131122
530203324104
62553531122
7514103336
oct162753532
962632025
1030136154
1116013814
12a113aa2
136321c59
1440067c6
1529a436e
hex1cbd75a

30136154 has 16 divisors (see below), whose sum is σ = 47152896. Its totient is φ = 14428800.

The previous prime is 30136129. The next prime is 30136159. The reversal of 30136154 is 45163103.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30136159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3509 + ... + 8519.

It is an arithmetic number, because the mean of its divisors is an integer number (2947056).

Almost surely, 230136154 is an apocalyptic number.

30136154 is a deficient number, since it is larger than the sum of its proper divisors (17016742).

30136154 is a wasteful number, since it uses less digits than its factorization.

30136154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5141.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 30136154 is about 5489.6406075444. The cubic root of 30136154 is about 311.1926102906.

Adding to 30136154 its reverse (45163103), we get a palindrome (75299257).

The spelling of 30136154 in words is "thirty million, one hundred thirty-six thousand, one hundred fifty-four".

Divisors: 1 2 31 62 97 194 3007 5011 6014 10022 155341 310682 486067 972134 15068077 30136154