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30136553 = 831911901
BaseRepresentation
bin111001011110…
…1100011101001
32002201002120122
41302331203221
530203332203
62553533025
7514104446
oct162754351
962632518
1030136553
1116014047
12a114175
1363221a5
1440069cd
1529a4538
hex1cbd8e9

30136553 has 8 divisors (see below), whose sum is σ = 30675456. Its totient is φ = 29602000.

The previous prime is 30136549. The next prime is 30136567. The reversal of 30136553 is 35563103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30136553 - 22 = 30136549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30136523) 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, 14903 + ... + 16803.

It is an arithmetic number, because the mean of its divisors is an integer number (3834432).

Almost surely, 230136553 is an apocalyptic number.

It is an amenable number.

30136553 is a deficient number, since it is larger than the sum of its proper divisors (538903).

30136553 is a wasteful number, since it uses less digits than its factorization.

30136553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175.

The product of its (nonzero) digits is 4050, while the sum is 26.

The square root of 30136553 is about 5489.6769486009. The cubic root of 30136553 is about 311.1939836720.

Adding to 30136553 its reverse (35563103), we get a palindrome (65699656).

The spelling of 30136553 in words is "thirty million, one hundred thirty-six thousand, five hundred fifty-three".

Divisors: 1 83 191 1901 15853 157783 363091 30136553