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30141553 = 132318581
BaseRepresentation
bin111001011111…
…0110001110001
32002201100102211
41302332301301
530204012203
62554012121
7514125151
oct162766161
962640384
1030141553
1116017882
12a117041
136324550
144008761
1529a5c6d
hex1cbec71

30141553 has 4 divisors (see below), whose sum is σ = 32460148. Its totient is φ = 27822960.

The previous prime is 30141539. The next prime is 30141557. The reversal of 30141553 is 35514103.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5071504 + 25070049 = 2252^2 + 5007^2 .

It is a cyclic number.

It is not a de Polignac number, because 30141553 - 213 = 30133361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30141557) 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, 1159278 + ... + 1159303.

It is an arithmetic number, because the mean of its divisors is an integer number (8115037).

Almost surely, 230141553 is an apocalyptic number.

It is an amenable number.

30141553 is a deficient number, since it is larger than the sum of its proper divisors (2318595).

30141553 is a wasteful number, since it uses less digits than its factorization.

30141553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2318594.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 30141553 is about 5490.1323299170. The cubic root of 30141553 is about 311.2111929381.

Adding to 30141553 its reverse (35514103), we get a palindrome (65655656).

The spelling of 30141553 in words is "thirty million, one hundred forty-one thousand, five hundred fifty-three".

Divisors: 1 13 2318581 30141553