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42974560 = 255416551
BaseRepresentation
bin1010001111101…
…1110101100000
32222212100000101
42203323311200
542000141220
64133032144
71031164156
oct243736540
988770011
1042974560
1122292472
1212485654
138b98745
1459c93d6
153b8d30a
hex28fbd60

42974560 has 48 divisors (see below), whose sum is σ = 104019552. Its totient is φ = 16768000.

The previous prime is 42974543. The next prime is 42974593. The reversal of 42974560 is 6547924.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3285 + ... + 9835.

It is an arithmetic number, because the mean of its divisors is an integer number (2167074).

Almost surely, 242974560 is an apocalyptic number.

42974560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42974560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52009776).

42974560 is an abundant number, since it is smaller than the sum of its proper divisors (61044992).

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

42974560 is a wasteful number, since it uses less digits than its factorization.

42974560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6607 (or 6599 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 42974560 is about 6555.4984554952. The cubic root of 42974560 is about 350.2707021402.

It can be divided in two parts, 42974 and 560, that added together give a palindrome (43534).

The spelling of 42974560 in words is "forty-two million, nine hundred seventy-four thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 41 80 82 160 164 205 328 410 656 820 1312 1640 3280 6551 6560 13102 26204 32755 52408 65510 104816 131020 209632 262040 268591 524080 537182 1048160 1074364 1342955 2148728 2685910 4297456 5371820 8594912 10743640 21487280 42974560