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42412680 = 23335173227
BaseRepresentation
bin1010000111001…
…0101010001000
32221210210021000
42201302222020
541324201210
64113015000
71023334062
oct241625210
987723230
1042412680
1121a39302
1212254460
138a2ca7b
1458c0732
153acbac0
hex2872a88

42412680 has 128 divisors (see below), whose sum is σ = 142819200. Its totient is φ = 11195136.

The previous prime is 42412679. The next prime is 42412687. The reversal of 42412680 is 8621424.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (42412687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186727 + ... + 186953.

It is an arithmetic number, because the mean of its divisors is an integer number (1115775).

Almost surely, 242412680 is an apocalyptic number.

42412680 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 42412680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71409600).

42412680 is an abundant number, since it is smaller than the sum of its proper divisors (100406520).

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

42412680 is a wasteful number, since it uses less digits than its factorization.

42412680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 42412680 is about 6512.5018234163. The cubic root of 42412680 is about 348.7374374016.

The spelling of 42412680 in words is "forty-two million, four hundred twelve thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 90 108 120 135 173 180 216 227 270 346 360 454 519 540 681 692 865 908 1038 1080 1135 1362 1384 1557 1730 1816 2043 2076 2270 2595 2724 3114 3405 3460 4086 4152 4540 4671 5190 5448 6129 6228 6810 6920 7785 8172 9080 9342 10215 10380 12258 12456 13620 15570 16344 18684 20430 20760 23355 24516 27240 30645 31140 37368 39271 40860 46710 49032 61290 62280 78542 81720 93420 117813 122580 157084 186840 196355 235626 245160 314168 353439 392710 471252 589065 706878 785420 942504 1060317 1178130 1413756 1570840 1767195 2120634 2356260 2827512 3534390 4241268 4712520 5301585 7068780 8482536 10603170 14137560 21206340 42412680