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54155020 = 2252707751
BaseRepresentation
bin1100111010010…
…1011100001100
310202220100201111
43032211130030
5102330430040
65212421404
71225211233
oct316453414
9122810644
1054155020
1128629517
1216177864
13b2b16ba
147299b1a
154b4adea
hex33a570c

54155020 has 12 divisors (see below), whose sum is σ = 113725584. Its totient is φ = 21662000.

The previous prime is 54155011. The next prime is 54155021. The reversal of 54155020 is 2055145.

54155020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 54154982 and 54155000.

It is not an unprimeable number, because it can be changed into a prime (54155021) 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, 1353856 + ... + 1353895.

It is an arithmetic number, because the mean of its divisors is an integer number (9477132).

Almost surely, 254155020 is an apocalyptic number.

It is an amenable number.

54155020 is an abundant number, since it is smaller than the sum of its proper divisors (59570564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54155020 is a wasteful number, since it uses less digits than its factorization.

54155020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2707760 (or 2707758 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 54155020 is about 7359.0094442119. The cubic root of 54155020 is about 378.3376600815.

The spelling of 54155020 in words is "fifty-four million, one hundred fifty-five thousand, twenty".

Divisors: 1 2 4 5 10 20 2707751 5415502 10831004 13538755 27077510 54155020