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52903980 = 223251931499
BaseRepresentation
bin1100100111010…
…0000000101100
310200112210121200
43021310000230
5102020411410
65125525500
71211451003
oct311640054
9120483550
1052903980
11279545a8
1215873890
13ac6413c
147051c3a
1549a03c0
hex327402c

52903980 has 144 divisors (see below), whose sum is σ = 174720000. Its totient is φ = 12908160.

The previous prime is 52903973. The next prime is 52904021. The reversal of 52903980 is 8930925.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 105771 + ... + 106269.

Almost surely, 252903980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52903980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87360000).

52903980 is an abundant number, since it is smaller than the sum of its proper divisors (121816020).

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

52903980 is a wasteful number, since it uses less digits than its factorization.

52903980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 52903980 is about 7273.5122190040. The cubic root of 52903980 is about 375.4015964340.

The spelling of 52903980 in words is "fifty-two million, nine hundred three thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 19 20 30 31 36 38 45 57 60 62 76 90 93 95 114 124 155 171 180 186 190 228 279 285 310 342 372 380 465 499 558 570 589 620 684 855 930 998 1116 1140 1178 1395 1497 1710 1767 1860 1996 2356 2495 2790 2945 2994 3420 3534 4491 4990 5301 5580 5890 5988 7068 7485 8835 8982 9481 9980 10602 11780 14970 15469 17670 17964 18962 21204 22455 26505 28443 29940 30938 35340 37924 44910 46407 47405 53010 56886 61876 77345 85329 89820 92814 94810 106020 113772 139221 142215 154690 170658 185628 189620 232035 278442 284430 293911 309380 341316 426645 464070 556884 568860 587822 696105 853290 881733 928140 1175644 1392210 1469555 1706580 1763466 2645199 2784420 2939110 3526932 4408665 5290398 5878220 8817330 10580796 13225995 17634660 26451990 52903980