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30150055 = 5131924413
BaseRepresentation
bin111001100000…
…0110110100111
32002201210002201
41303000312213
530204300210
62554115331
7514162015
oct163006647
962653081
1030150055
1116023201
12a11bb47
136328390
14400b8b5
1529a853a
hex1cc0da7

30150055 has 16 divisors (see below), whose sum is σ = 41015520. Its totient is φ = 21091968.

The previous prime is 30150031. The next prime is 30150091. The reversal of 30150055 is 55005103.

It is a cyclic number.

It is not a de Polignac number, because 30150055 - 25 = 30150023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10972 + ... + 13441.

It is an arithmetic number, because the mean of its divisors is an integer number (2563470).

Almost surely, 230150055 is an apocalyptic number.

30150055 is a deficient number, since it is larger than the sum of its proper divisors (10865465).

30150055 is a wasteful number, since it uses less digits than its factorization.

30150055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24450.

The product of its (nonzero) digits is 375, while the sum is 19.

The square root of 30150055 is about 5490.9065735997. The cubic root of 30150055 is about 311.2404512052.

Adding to 30150055 its reverse (55005103), we get a palindrome (85155158).

The spelling of 30150055 in words is "thirty million, one hundred fifty thousand, fifty-five".

Divisors: 1 5 13 19 65 95 247 1235 24413 122065 317369 463847 1586845 2319235 6030011 30150055