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42052415 = 5192291933
BaseRepresentation
bin1010000001101…
…0101100111111
32221010111001212
42200122230333
541231134130
64101155035
71020303536
oct240325477
987114055
1042052415
1121812669
12120bba7b
138934ab2
14582931d
153a59e95
hex281ab3f

42052415 has 16 divisors (see below), whose sum is σ = 53378400. Its totient is φ = 31715712.

The previous prime is 42052403. The next prime is 42052447. The reversal of 42052415 is 51425024.

Adding to 42052415 its reverse (51425024), we get a palindrome (93477439).

It is a happy number.

It is not a de Polignac number, because 42052415 - 210 = 42051391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20789 + ... + 22721.

It is an arithmetic number, because the mean of its divisors is an integer number (3336150).

Almost surely, 242052415 is an apocalyptic number.

42052415 is a deficient number, since it is larger than the sum of its proper divisors (11325985).

42052415 is a wasteful number, since it uses less digits than its factorization.

42052415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 42052415 is about 6484.7833425643. The cubic root of 42052415 is about 347.7472043276.

The spelling of 42052415 in words is "forty-two million, fifty-two thousand, four hundred fifteen".

Divisors: 1 5 19 95 229 1145 1933 4351 9665 21755 36727 183635 442657 2213285 8410483 42052415