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42152880 = 24357112281
BaseRepresentation
bin1010000011001…
…1001110110000
32221022120212210
42200303032300
541242343010
64103252120
71021202460
oct240631660
987276783
1042152880
11218810a0
121214a040
13896b743
145853ba0
153a79b20
hex28333b0

42152880 has 160 divisors (see below), whose sum is σ = 162989568. Its totient is φ = 8755200.

The previous prime is 42152833. The next prime is 42152893. The reversal of 42152880 is 8825124.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 31 ways as a sum of consecutive naturals, for example, 17340 + ... + 19620.

Almost surely, 242152880 is an apocalyptic number.

42152880 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 42152880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81494784).

42152880 is an abundant number, since it is smaller than the sum of its proper divisors (120836688).

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

42152880 is a wasteful number, since it uses less digits than its factorization.

42152880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315 (or 2309 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 42152880 is about 6492.5249325667. The cubic root of 42152880 is about 348.0239116876.

It can be divided in two parts, 421 and 52880, that added together give a triangular number (53301 = T326).

The spelling of 42152880 in words is "forty-two million, one hundred fifty-two thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 11 12 14 15 16 20 21 22 24 28 30 33 35 40 42 44 48 55 56 60 66 70 77 80 84 88 105 110 112 120 132 140 154 165 168 176 210 220 231 240 264 280 308 330 336 385 420 440 462 528 560 616 660 770 840 880 924 1155 1232 1320 1540 1680 1848 2281 2310 2640 3080 3696 4562 4620 6160 6843 9124 9240 11405 13686 15967 18248 18480 22810 25091 27372 31934 34215 36496 45620 47901 50182 54744 63868 68430 75273 79835 91240 95802 100364 109488 125455 127736 136860 150546 159670 175637 182480 191604 200728 239505 250910 255472 273720 301092 319340 351274 376365 383208 401456 479010 501820 526911 547440 602184 638680 702548 752730 766416 878185 958020 1003640 1053822 1204368 1277360 1405096 1505460 1756370 1916040 2007280 2107644 2634555 2810192 3010920 3512740 3832080 4215288 5269110 6021840 7025480 8430576 10538220 14050960 21076440 42152880