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42872480 = 2557101379
BaseRepresentation
bin1010001110001…
…0111010100000
32222200010222122
42203202322200
541433404410
64130523412
71030260440
oct243427240
988603878
1042872480
1122222802
1212436568
138b61141
1459a0120
153b6ce55
hex28e2ea0

42872480 has 96 divisors (see below), whose sum is σ = 117210240. Its totient is φ = 14515200.

The previous prime is 42872399. The next prime is 42872491. The reversal of 42872480 is 8427824.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 42872480.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112931 + ... + 113309.

It is an arithmetic number, because the mean of its divisors is an integer number (1220940).

Almost surely, 242872480 is an apocalyptic number.

42872480 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 42872480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58605120).

42872480 is an abundant number, since it is smaller than the sum of its proper divisors (74337760).

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

42872480 is a wasteful number, since it uses less digits than its factorization.

42872480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502 (or 494 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 35.

The square root of 42872480 is about 6547.7079959326. The cubic root of 42872480 is about 349.9931427228.

The spelling of 42872480 in words is "forty-two million, eight hundred seventy-two thousand, four hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 70 80 101 112 140 160 202 224 280 379 404 505 560 707 758 808 1010 1120 1414 1516 1616 1895 2020 2653 2828 3032 3232 3535 3790 4040 5306 5656 6064 7070 7580 8080 10612 11312 12128 13265 14140 15160 16160 21224 22624 26530 28280 30320 38279 42448 53060 56560 60640 76558 84896 106120 113120 153116 191395 212240 267953 306232 382790 424480 535906 612464 765580 1071812 1224928 1339765 1531160 2143624 2679530 3062320 4287248 5359060 6124640 8574496 10718120 21436240 42872480