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42482431 = 311399859
BaseRepresentation
bin1010001000001…
…1101011111111
32221221022221101
42202003223333
541333414211
64114313531
71024044325
oct242035377
987838841
1042482431
1121a86752
12122888a7
138a55744
1458dbd15
153ae25c1
hex2883aff

42482431 has 8 divisors (see below), whose sum is σ = 44172800. Its totient is φ = 40812120.

The previous prime is 42482417. The next prime is 42482441. The reversal of 42482431 is 13428424.

It is a happy number.

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

It is not a de Polignac number, because 42482431 - 217 = 42351359 is a prime.

It is a super-2 number, since 2×424824312 = 3609513887339522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42482431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42482441) 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, 621 + ... + 9238.

It is an arithmetic number, because the mean of its divisors is an integer number (5521600).

Almost surely, 242482431 is an apocalyptic number.

42482431 is a deficient number, since it is larger than the sum of its proper divisors (1690369).

42482431 is a wasteful number, since it uses less digits than its factorization.

42482431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10029.

The product of its digits is 6144, while the sum is 28.

The square root of 42482431 is about 6517.8547851268. The cubic root of 42482431 is about 348.9285081104.

The spelling of 42482431 in words is "forty-two million, four hundred eighty-two thousand, four hundred thirty-one".

Divisors: 1 31 139 4309 9859 305629 1370401 42482431