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55163241 = 337291869
BaseRepresentation
bin1101001001101…
…1100101101001
310211210120202000
43102123211221
5103110210431
65250201213
71236610530
oct322334551
9124716660
1055163241
1129157a61
1216583209
13b575593
14747d317
154c999e6
hex349b969

55163241 has 16 divisors (see below), whose sum is σ = 93398400. Its totient is φ = 31521744.

The previous prime is 55163231. The next prime is 55163261. The reversal of 55163241 is 14236155.

It is not a de Polignac number, because 55163241 - 211 = 55161193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (55163201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145746 + ... + 146123.

It is an arithmetic number, because the mean of its divisors is an integer number (5837400).

Almost surely, 255163241 is an apocalyptic number.

It is an amenable number.

55163241 is a deficient number, since it is larger than the sum of its proper divisors (38235159).

55163241 is a wasteful number, since it uses less digits than its factorization.

55163241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291885 (or 291879 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 55163241 is about 7427.1960388830. The cubic root of 55163241 is about 380.6711155269.

Adding to 55163241 its reverse (14236155), we get a palindrome (69399396).

The spelling of 55163241 in words is "fifty-five million, one hundred sixty-three thousand, two hundred forty-one".

Divisors: 1 3 7 9 21 27 63 189 291869 875607 2043083 2626821 6129249 7880463 18387747 55163241