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239145120 = 25325179769
BaseRepresentation
bin11100100000100…
…01000010100000
3121122222211102200
432100101002200
5442210120440
635421413200
75632462044
oct1620210240
9548884380
10239145120
11112a9a2a5
126810a200
133a7119b6
1423a92024
1515edcc30
hexe4110a0

239145120 has 144 divisors (see below), whose sum is σ = 864176040. Its totient is φ = 60014592.

The previous prime is 239145119. The next prime is 239145131. The reversal of 239145120 is 21541932.

It can be written as a sum of positive squares in 4 ways, for example, as 203575824 + 35569296 = 14268^2 + 5964^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19596 + ... + 29364.

Almost surely, 2239145120 is an apocalyptic number.

239145120 is a gapful number since it is divisible by the number (20) 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 239145120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432088020).

239145120 is an abundant number, since it is smaller than the sum of its proper divisors (625030920).

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

239145120 is a wasteful number, since it uses less digits than its factorization.

239145120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9807 (or 9796 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 239145120 is about 15464.3176377104. The cubic root of 239145120 is about 620.7077592165.

The spelling of 239145120 in words is "two hundred thirty-nine million, one hundred forty-five thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 17 18 20 24 30 32 34 36 40 45 48 51 60 68 72 80 85 90 96 102 120 136 144 153 160 170 180 204 240 255 272 288 306 340 360 408 480 510 544 612 680 720 765 816 1020 1224 1360 1440 1530 1632 2040 2448 2720 3060 4080 4896 6120 8160 9769 12240 19538 24480 29307 39076 48845 58614 78152 87921 97690 117228 146535 156304 166073 175842 195380 234456 293070 312608 332146 351684 390760 439605 468912 498219 586140 664292 703368 781520 830365 879210 937824 996438 1172280 1328584 1406736 1494657 1563040 1660730 1758420 1992876 2344560 2491095 2657168 2813472 2989314 3321460 3516840 3985752 4689120 4982190 5314336 5978628 6642920 7033680 7473285 7971504 9964380 11957256 13285840 14067360 14946570 15943008 19928760 23914512 26571680 29893140 39857520 47829024 59786280 79715040 119572560 239145120