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5181960 = 2335731199
BaseRepresentation
bin10011110001001000001000
3100202021022110
4103301020020
52311310320
6303022320
762021520
oct23611010
910667273
105181960
112a1a313
12189a9a0
1310c5864
1498c680
156c55e0
hex4f1208

5181960 has 128 divisors (see below), whose sum is σ = 18432000. Its totient is φ = 1140480.

The previous prime is 5181947. The next prime is 5181971. The reversal of 5181960 is 691815.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25941 + ... + 26139.

It is an arithmetic number, because the mean of its divisors is an integer number (144000).

Almost surely, 25181960 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 5181960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9216000).

5181960 is an abundant number, since it is smaller than the sum of its proper divisors (13250040).

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

5181960 is a wasteful number, since it uses less digits than its factorization.

5181960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 5181960 is about 2276.3918819043. The cubic root of 5181960 is about 173.0472433818.

The spelling of 5181960 in words is "five million, one hundred eighty-one thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 31 35 40 42 56 60 62 70 84 93 105 120 124 140 155 168 186 199 210 217 248 280 310 372 398 420 434 465 597 620 651 744 796 840 868 930 995 1085 1194 1240 1302 1393 1592 1736 1860 1990 2170 2388 2604 2786 2985 3255 3720 3980 4179 4340 4776 5208 5572 5970 6169 6510 6965 7960 8358 8680 11144 11940 12338 13020 13930 16716 18507 20895 23880 24676 26040 27860 30845 33432 37014 41790 43183 49352 55720 61690 74028 83580 86366 92535 123380 129549 148056 167160 172732 185070 215915 246760 259098 345464 370140 431830 518196 647745 740280 863660 1036392 1295490 1727320 2590980 5181960