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42968053 = 296532269
BaseRepresentation
bin1010001111101…
…0001111110101
32222212000002101
42203322033311
541444434203
64132542101
71031136202
oct243721765
988760071
1042968053
1122288597
1212481931
138b957ab
1459c6ca9
153b8b41d
hex28fa3f5

42968053 has 8 divisors (see below), whose sum is σ = 44537400. Its totient is φ = 41404608.

The previous prime is 42968047. The next prime is 42968069. The reversal of 42968053 is 35086924.

It can be written as a sum of positive squares in 4 ways, for example, as 26244 + 42941809 = 162^2 + 6553^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 42968053 - 221 = 40870901 is a prime.

It is a super-2 number, since 2×429680532 = 3692507157221618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42968753) 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, 17803 + ... + 20071.

It is an arithmetic number, because the mean of its divisors is an integer number (5567175).

Almost surely, 242968053 is an apocalyptic number.

It is an amenable number.

42968053 is a deficient number, since it is larger than the sum of its proper divisors (1569347).

42968053 is a wasteful number, since it uses less digits than its factorization.

42968053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 42968053 is about 6555.0021357739. The cubic root of 42968053 is about 350.2530224827.

The spelling of 42968053 in words is "forty-two million, nine hundred sixty-eight thousand, fifty-three".

Divisors: 1 29 653 2269 18937 65801 1481657 42968053