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55169492 = 227379509
BaseRepresentation
bin1101001001110…
…1000111010100
310211210220022112
43102131013110
5103110410432
65250250152
71236635000
oct322350724
9124726275
1055169492
1129161724
1216586958
13b578391
147481700
154c9b7b2
hex349d1d4

55169492 has 48 divisors (see below), whose sum is σ = 114240000. Its totient is φ = 23298912.

The previous prime is 55169467. The next prime is 55169501. The reversal of 55169492 is 29496155.

55169492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 108134 + ... + 108642.

It is an arithmetic number, because the mean of its divisors is an integer number (2380000).

Almost surely, 255169492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55169492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57120000).

55169492 is an abundant number, since it is smaller than the sum of its proper divisors (59070508).

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

55169492 is a wasteful number, since it uses less digits than its factorization.

55169492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613 (or 597 counting only the distinct ones).

The product of its digits is 97200, while the sum is 41.

The square root of 55169492 is about 7427.6168452607. The cubic root of 55169492 is about 380.6854939742.

The spelling of 55169492 in words is "fifty-five million, one hundred sixty-nine thousand, four hundred ninety-two".

Divisors: 1 2 4 7 14 28 49 79 98 158 196 316 343 509 553 686 1018 1106 1372 2036 2212 3563 3871 7126 7742 14252 15484 24941 27097 40211 49882 54194 80422 99764 108388 160844 174587 281477 349174 562954 698348 1125908 1970339 3940678 7881356 13792373 27584746 55169492