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55479132 = 22323741651
BaseRepresentation
bin1101001110100…
…0101101011100
310212101122001200
43103220231130
5103200313012
65301035500
71242364512
oct323505534
9125348050
1055479132
1129353325
12166b5b90
13b6562b7
1475224b2
154d0d3dc
hex34e8b5c

55479132 has 36 divisors (see below), whose sum is σ = 144032616. Its totient is φ = 17992800.

The previous prime is 55479103. The next prime is 55479139. The reversal of 55479132 is 23197455.

55479132 is a `hidden beast` number, since 55 + 479 + 132 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×554791323 (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55479139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19494 + ... + 22157.

It is an arithmetic number, because the mean of its divisors is an integer number (4000906).

Almost surely, 255479132 is an apocalyptic number.

It is an amenable number.

55479132 is an abundant number, since it is smaller than the sum of its proper divisors (88553484).

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

55479132 is a wasteful number, since it uses less digits than its factorization.

55479132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41698 (or 41693 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 55479132 is about 7448.4315127415. The cubic root of 55479132 is about 381.3963676288.

It can be divided in two parts, 55479 and 132, that added together give a triangular number (55611 = T333).

The spelling of 55479132 in words is "fifty-five million, four hundred seventy-nine thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 37 74 111 148 222 333 444 666 1332 41651 83302 124953 166604 249906 374859 499812 749718 1499436 1541087 3082174 4623261 6164348 9246522 13869783 18493044 27739566 55479132