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53913172 = 221572932
BaseRepresentation
bin1100110110101…
…0011001010100
310202110001222011
43031222121110
5102300210142
65203314004
71223153155
oct315523124
9122401864
1053913172
1128483845
121607b904
13b2285b1
14723592c
154aee417
hex336a654

53913172 has 18 divisors (see below), whose sum is σ = 95274158. Its totient is φ = 26693472.

The previous prime is 53913163. The next prime is 53913179. The reversal of 53913172 is 27131935.

53913172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 29746116 + 24167056 = 5454^2 + 4916^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53913179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 183858 + ... + 184150.

Almost surely, 253913172 is an apocalyptic number.

It is an amenable number.

53913172 is a deficient number, since it is larger than the sum of its proper divisors (41360986).

53913172 is a wasteful number, since it uses less digits than its factorization.

53913172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 452 counting only the distinct ones).

The product of its digits is 5670, while the sum is 31.

The square root of 53913172 is about 7342.5589544790. The cubic root of 53913172 is about 377.7736203182.

The spelling of 53913172 in words is "fifty-three million, nine hundred thirteen thousand, one hundred seventy-two".

Divisors: 1 2 4 157 293 314 586 628 1172 46001 85849 92002 171698 184004 343396 13478293 26956586 53913172