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42001454 = 21129431531
BaseRepresentation
bin1010000000111…
…0010000101110
32221000220011102
42200032100232
541223021304
64100123102
71020002135
oct240162056
987026142
1042001454
1121788350
1212096492
138917841
14581491c
153a49d1e
hex280e42e

42001454 has 32 divisors (see below), whose sum is σ = 72800640. Its totient is φ = 17992800.

The previous prime is 42001447. The next prime is 42001469. The reversal of 42001454 is 45410024.

It is a super-2 number, since 2×420014542 = 3528244276228232, which contains 22 as substring.

It is a Curzon number.

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, 26669 + ... + 28199.

It is an arithmetic number, because the mean of its divisors is an integer number (2275020).

Almost surely, 242001454 is an apocalyptic number.

42001454 is a deficient number, since it is larger than the sum of its proper divisors (30799186).

42001454 is a wasteful number, since it uses less digits than its factorization.

42001454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 42001454 is about 6480.8528759724. The cubic root of 42001454 is about 347.6066756668.

Adding to 42001454 its reverse (45410024), we get a palindrome (87411478).

The spelling of 42001454 in words is "forty-two million, one thousand, four hundred fifty-four".

Divisors: 1 2 11 22 29 43 58 86 319 473 638 946 1247 1531 2494 3062 13717 16841 27434 33682 44399 65833 88798 131666 488389 724163 976778 1448326 1909157 3818314 21000727 42001454