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53019935 = 510603987
BaseRepresentation
bin1100101001000…
…0010100011111
310200202200200022
43022100110133
5102033114220
65132222355
71212443033
oct312202437
9120680608
1053019935
1127a23731
121590a9bb
13aca4b57
1470821c3
1549c4925
hex329051f

53019935 has 4 divisors (see below), whose sum is σ = 63623928. Its totient is φ = 42415944.

The previous prime is 53019931. The next prime is 53019943. The reversal of 53019935 is 53991035.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53019935 - 22 = 53019931 is a prime.

It is a super-2 number, since 2×530199352 = 5622227014808450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53019895 and 53019904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53019931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5301989 + ... + 5301998.

It is an arithmetic number, because the mean of its divisors is an integer number (15905982).

Almost surely, 253019935 is an apocalyptic number.

53019935 is a deficient number, since it is larger than the sum of its proper divisors (10603993).

53019935 is a wasteful number, since it uses less digits than its factorization.

53019935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10603992.

The product of its (nonzero) digits is 18225, while the sum is 35.

The square root of 53019935 is about 7281.4789019814. The cubic root of 53019935 is about 375.6756648372.

The spelling of 53019935 in words is "fifty-three million, nineteen thousand, nine hundred thirty-five".

Divisors: 1 5 10603987 53019935