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55136802 = 2376121521
BaseRepresentation
bin1101001001010…
…1001000100010
310211202020110210
43102111020202
5103103334202
65245434550
71236440460
oct322251042
9124666423
1055136802
112913a106
121656ba56
13b566536
147473830
154c91c6c
hex3495222

55136802 has 32 divisors (see below), whose sum is σ = 128098944. Its totient is φ = 15494400.

The previous prime is 55136789. The next prime is 55136813. The reversal of 55136802 is 20863155.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 55136802.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8199 + ... + 13322.

It is an arithmetic number, because the mean of its divisors is an integer number (4003092).

Almost surely, 255136802 is an apocalyptic number.

55136802 is an abundant number, since it is smaller than the sum of its proper divisors (72962142).

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

55136802 is a wasteful number, since it uses less digits than its factorization.

55136802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21594.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 55136802 is about 7425.4159479453. The cubic root of 55136802 is about 380.6102889583.

Adding to 55136802 its reverse (20863155), we get a palindrome (75999957).

The spelling of 55136802 in words is "fifty-five million, one hundred thirty-six thousand, eight hundred two".

Divisors: 1 2 3 6 7 14 21 42 61 122 183 366 427 854 1281 2562 21521 43042 64563 129126 150647 301294 451941 903882 1312781 2625562 3938343 7876686 9189467 18378934 27568401 55136802