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42141040 = 245526763
BaseRepresentation
bin1010000011000…
…0010101110000
32221021222122021
42200300111300
541242003130
64103121224
71021123114
oct240602560
987258567
1042141040
1121873207
1212143214
138966236
14584d744
153a7637a
hex2830570

42141040 has 20 divisors (see below), whose sum is σ = 97978104. Its totient is φ = 16856384.

The previous prime is 42141017. The next prime is 42141041. The reversal of 42141040 is 4014124.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42141041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263302 + ... + 263461.

Almost surely, 242141040 is an apocalyptic number.

42141040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42141040 is an abundant number, since it is smaller than the sum of its proper divisors (55837064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42141040 is a wasteful number, since it uses less digits than its factorization.

42141040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526776 (or 526770 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 42141040 is about 6491.6130506986. The cubic root of 42141040 is about 347.9913240449.

Adding to 42141040 its reverse (4014124), we get a palindrome (46155164).

The spelling of 42141040 in words is "forty-two million, one hundred forty-one thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 526763 1053526 2107052 2633815 4214104 5267630 8428208 10535260 21070520 42141040