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42038560 = 255262741
BaseRepresentation
bin1010000001011…
…1010100100000
32221002210001201
42200113110200
541230213220
64101010544
71020215254
oct240272440
987083051
1042038560
1121803213
12120b3a54
13892b6b5
145824264
153a55d0a
hex2817520

42038560 has 24 divisors (see below), whose sum is σ = 99316476. Its totient is φ = 16815360.

The previous prime is 42038537. The next prime is 42038561. The reversal of 42038560 is 6583024.

It can be written as a sum of positive squares in 2 ways, for example, as 39388176 + 2650384 = 6276^2 + 1628^2 .

It is not an unprimeable number, because it can be changed into a prime (42038561) 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, 131211 + ... + 131530.

Almost surely, 242038560 is an apocalyptic number.

42038560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42038560 is an abundant number, since it is smaller than the sum of its proper divisors (57277916).

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

42038560 is a wasteful number, since it uses less digits than its factorization.

42038560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262756 (or 262748 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 42038560 is about 6483.7149844823. The cubic root of 42038560 is about 347.7090094007.

The spelling of 42038560 in words is "forty-two million, thirty-eight thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 262741 525482 1050964 1313705 2101928 2627410 4203856 5254820 8407712 10509640 21019280 42038560