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55215034 = 273943931
BaseRepresentation
bin1101001010100…
…0001110111010
310211220012210021
43102220032322
5103113340114
65251241054
71240214530
oct322501672
9124805707
1055215034
1129192966
12165a918a
13b593024
147494150
154caa024
hex34a83ba

55215034 has 8 divisors (see below), whose sum is σ = 94654368. Its totient is φ = 23663580.

The previous prime is 55215011. The next prime is 55215037. The reversal of 55215034 is 43051255.

55215034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (55215037) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1971952 + ... + 1971979.

It is an arithmetic number, because the mean of its divisors is an integer number (11831796).

Almost surely, 255215034 is an apocalyptic number.

55215034 is a deficient number, since it is larger than the sum of its proper divisors (39439334).

55215034 is a wasteful number, since it uses less digits than its factorization.

55215034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3943940.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 55215034 is about 7430.6819337124. The cubic root of 55215034 is about 380.7902161661.

Adding to 55215034 its reverse (43051255), we get a palindrome (98266289).

The spelling of 55215034 in words is "fifty-five million, two hundred fifteen thousand, thirty-four".

Divisors: 1 2 7 14 3943931 7887862 27607517 55215034