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42153457 = 192396461
BaseRepresentation
bin1010000011001…
…1010111110001
32221022121200011
42200303113301
541242402312
64103254521
71021204243
oct240632761
987277604
1042153457
1121881575
121214a441
13896ba98
145854093
153a79da7
hex28335f1

42153457 has 8 divisors (see below), whose sum is σ = 46301760. Its totient is φ = 38198160.

The previous prime is 42153451. The next prime is 42153479. The reversal of 42153457 is 75435124.

42153457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42153457 - 27 = 42153329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42153451) 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 7 ways as a sum of consecutive naturals, for example, 47794 + ... + 48667.

It is an arithmetic number, because the mean of its divisors is an integer number (5787720).

Almost surely, 242153457 is an apocalyptic number.

It is an amenable number.

42153457 is a deficient number, since it is larger than the sum of its proper divisors (4148303).

42153457 is a wasteful number, since it uses less digits than its factorization.

42153457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96503.

The product of its digits is 16800, while the sum is 31.

The square root of 42153457 is about 6492.5693681315. The cubic root of 42153457 is about 348.0254996288.

The spelling of 42153457 in words is "forty-two million, one hundred fifty-three thousand, four hundred fifty-seven".

Divisors: 1 19 23 437 96461 1832759 2218603 42153457