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120215340 = 22345710601
BaseRepresentation
bin1110010101001…
…01011100101100
322101012120110000
413022211130230
5221233342330
615532344300
72656546020
oct712453454
9271176400
10120215340
1161949623
1234315090
131bba0c4b
1411d74380
15a849560
hex72a572c

120215340 has 120 divisors (see below), whose sum is σ = 431034912. Its totient is φ = 27475200.

The previous prime is 120215339. The next prime is 120215377. The reversal of 120215340 is 43512021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6040 + ... + 16640.

Almost surely, 2120215340 is an apocalyptic number.

120215340 is a gapful number since it is divisible by the number (10) 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 120215340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215517456).

120215340 is an abundant number, since it is smaller than the sum of its proper divisors (310819572).

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

120215340 is a wasteful number, since it uses less digits than its factorization.

120215340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10629 (or 10618 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 120215340 is about 10964.2756258679. The cubic root of 120215340 is about 493.5372797292.

Adding to 120215340 its reverse (43512021), we get a palindrome (163727361).

The spelling of 120215340 in words is "one hundred twenty million, two hundred fifteen thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 35 36 42 45 54 60 63 70 81 84 90 105 108 126 135 140 162 180 189 210 252 270 315 324 378 405 420 540 567 630 756 810 945 1134 1260 1620 1890 2268 2835 3780 5670 10601 11340 21202 31803 42404 53005 63606 74207 95409 106010 127212 148414 159015 190818 212020 222621 286227 296828 318030 371035 381636 445242 477045 572454 636060 667863 742070 858681 890484 954090 1113105 1144908 1335726 1431135 1484140 1717362 1908180 2003589 2226210 2671452 2862270 3339315 3434724 4007178 4293405 4452420 5724540 6010767 6678630 8014356 8586810 10017945 12021534 13357260 17173620 20035890 24043068 30053835 40071780 60107670 120215340