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55151202 = 239191867
BaseRepresentation
bin1101001001100…
…0101001100010
310211202222020010
43102120221202
5103104314302
65250025350
71236530451
oct322305142
9124688203
1055151202
1129149a07
1216578256
13b56cc62
147478b98
154c9616c
hex3498a62

55151202 has 8 divisors (see below), whose sum is σ = 110302416. Its totient is φ = 18383732.

The previous prime is 55151183. The next prime is 55151203. The reversal of 55151202 is 20215155.

It is a sphenic number, since it is the product of 3 distinct primes.

55151202 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (55151203) 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 3 ways as a sum of consecutive naturals, for example, 4595928 + ... + 4595939.

It is an arithmetic number, because the mean of its divisors is an integer number (13787802).

Almost surely, 255151202 is an apocalyptic number.

55151202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55151202 is a wasteful number, since it uses less digits than its factorization.

55151202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9191872.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 55151202 is about 7426.3855272939. The cubic root of 55151202 is about 380.6434205564.

Adding to 55151202 its reverse (20215155), we get a palindrome (75366357).

The spelling of 55151202 in words is "fifty-five million, one hundred fifty-one thousand, two hundred two".

Divisors: 1 2 3 6 9191867 18383734 27575601 55151202