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34237980 = 22325729937
BaseRepresentation
bin1000001010011…
…0111000011100
32101102110200100
42002212320130
532231103410
63221501100
7564006120
oct202467034
971373610
1034237980
1118365557
12b571790
137129c7a
144793580
1530148c0
hex20a6e1c

34237980 has 144 divisors (see below), whose sum is σ = 122915520. Its totient is φ = 7547904.

The previous prime is 34237979. The next prime is 34237991. The reversal of 34237980 is 8973243.

It is a super-3 number, since 3×342379803 (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 36072 + ... + 37008.

It is an arithmetic number, because the mean of its divisors is an integer number (853580).

Almost surely, 234237980 is an apocalyptic number.

34237980 is a gapful number since it is divisible by the number (30) 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 34237980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61457760).

34237980 is an abundant number, since it is smaller than the sum of its proper divisors (88677540).

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

34237980 is a wasteful number, since it uses less digits than its factorization.

34237980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 34237980 is about 5851.3229273387. The cubic root of 34237980 is about 324.7152693596.

The spelling of 34237980 in words is "thirty-four million, two hundred thirty-seven thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 29 30 35 36 42 45 58 60 63 70 84 87 90 105 116 126 140 145 174 180 203 210 252 261 290 315 348 406 420 435 522 580 609 630 812 870 937 1015 1044 1218 1260 1305 1740 1827 1874 2030 2436 2610 2811 3045 3654 3748 4060 4685 5220 5622 6090 6559 7308 8433 9135 9370 11244 12180 13118 14055 16866 18270 18740 19677 26236 27173 28110 32795 33732 36540 39354 42165 54346 56220 59031 65590 78708 81519 84330 98385 108692 118062 131180 135865 163038 168660 190211 196770 236124 244557 271730 295155 326076 380422 393540 407595 489114 543460 570633 590310 760844 815190 951055 978228 1141266 1180620 1222785 1630380 1711899 1902110 2282532 2445570 2853165 3423798 3804220 4891140 5706330 6847596 8559495 11412660 17118990 34237980