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53742297 = 377393463
BaseRepresentation
bin1100110100000…
…0101011011001
310202010101120110
43031000223121
5102224223142
65155514533
71221542040
oct315005331
9122111513
1053742297
1128377424
1215bb8a49
13b19889b
1471cd557
154ab899c
hex3340ad9

53742297 has 16 divisors (see below), whose sum is σ = 82027520. Its totient is φ = 30659472.

The previous prime is 53742239. The next prime is 53742343. The reversal of 53742297 is 79224735.

It is not a de Polignac number, because 53742297 - 26 = 53742233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53742397) 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, 13788 + ... + 17250.

It is an arithmetic number, because the mean of its divisors is an integer number (5126720).

Almost surely, 253742297 is an apocalyptic number.

It is an amenable number.

53742297 is a deficient number, since it is larger than the sum of its proper divisors (28285223).

53742297 is a wasteful number, since it uses less digits than its factorization.

53742297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4212.

The product of its digits is 105840, while the sum is 39.

The square root of 53742297 is about 7330.9137902447. The cubic root of 53742297 is about 377.3740866269.

The spelling of 53742297 in words is "fifty-three million, seven hundred forty-two thousand, two hundred ninety-seven".

Divisors: 1 3 7 21 739 2217 3463 5173 10389 15519 24241 72723 2559157 7677471 17914099 53742297