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55169292 = 22328116361
BaseRepresentation
bin1101001001110…
…1000100001100
310211210220001010
43102131010030
5103110404132
65250245220
71236634263
oct322350414
9124726033
1055169292
1129161562
1216586810
13b578269
1474815da
154c9b6cc
hex349d10c

55169292 has 24 divisors (see below), whose sum is σ = 129194352. Its totient is φ = 18323200.

The previous prime is 55169291. The next prime is 55169297. The reversal of 55169292 is 29296155.

It is a self number, because there is not a number n which added to its sum of digits gives 55169292.

It is not an unprimeable number, because it can be changed into a prime (55169291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4809 + ... + 11552.

It is an arithmetic number, because the mean of its divisors is an integer number (5383098).

Almost surely, 255169292 is an apocalyptic number.

It is an amenable number.

55169292 is an abundant number, since it is smaller than the sum of its proper divisors (74025060).

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

55169292 is a wasteful number, since it uses less digits than its factorization.

55169292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16649 (or 16647 counting only the distinct ones).

The product of its digits is 48600, while the sum is 39.

The square root of 55169292 is about 7427.6033819800. The cubic root of 55169292 is about 380.6850339543.

The spelling of 55169292 in words is "fifty-five million, one hundred sixty-nine thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 12 281 562 843 1124 1686 3372 16361 32722 49083 65444 98166 196332 4597441 9194882 13792323 18389764 27584646 55169292