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55550193 = 347794987
BaseRepresentation
bin1101001111101…
…0000011110001
310212112020112120
43103322003301
5103210101233
65302344453
71243111626
oct323720361
9125466476
1055550193
11293a1756
121672b129
13b67c74a
14754034d
154d244b3
hex34fa0f1

55550193 has 16 divisors (see below), whose sum is σ = 76615680. Its totient is φ = 35779536.

The previous prime is 55550191. The next prime is 55550213. The reversal of 55550193 is 39105555.

It is not a de Polignac number, because 55550193 - 21 = 55550191 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55550191) 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, 8646 + ... + 13632.

It is an arithmetic number, because the mean of its divisors is an integer number (4788480).

Almost surely, 255550193 is an apocalyptic number.

It is an amenable number.

55550193 is a deficient number, since it is larger than the sum of its proper divisors (21065487).

55550193 is a wasteful number, since it uses less digits than its factorization.

55550193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5116.

The product of its (nonzero) digits is 16875, while the sum is 33.

The square root of 55550193 is about 7453.2001851554. The cubic root of 55550193 is about 381.5591366020.

The spelling of 55550193 in words is "fifty-five million, five hundred fifty thousand, one hundred ninety-three".

Divisors: 1 3 47 79 141 237 3713 4987 11139 14961 234389 393973 703167 1181919 18516731 55550193