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55151941 = 1337114661
BaseRepresentation
bin1101001001100…
…0110101000101
310211210000020111
43102120311011
5103104330231
65250033021
71236532555
oct322306505
9124700214
1055151941
112914a519
1216578771
13b5703b0
147479165
154c964b1
hex3498d45

55151941 has 8 divisors (see below), whose sum is σ = 61000184. Its totient is φ = 49533120.

The previous prime is 55151897. The next prime is 55151951. The reversal of 55151941 is 14915155.

It can be written as a sum of positive squares in 4 ways, for example, as 7403841 + 47748100 = 2721^2 + 6910^2 .

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

It is not a de Polignac number, because 55151941 - 211 = 55149893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55151951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56850 + ... + 57811.

It is an arithmetic number, because the mean of its divisors is an integer number (7625023).

Almost surely, 255151941 is an apocalyptic number.

It is an amenable number.

55151941 is a deficient number, since it is larger than the sum of its proper divisors (5848243).

55151941 is a wasteful number, since it uses less digits than its factorization.

55151941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114711.

The product of its digits is 4500, while the sum is 31.

The square root of 55151941 is about 7426.4352821525. The cubic root of 55151941 is about 380.6451206960.

The spelling of 55151941 in words is "fifty-five million, one hundred fifty-one thousand, nine hundred forty-one".

Divisors: 1 13 37 481 114661 1490593 4242457 55151941