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49398860 = 2257319379
BaseRepresentation
bin1011110001110…
…0010001001100
310102221201111102
42330130101030
5100121230420
64522442232
71136612000
oct274342114
9112851442
1049398860
1125980105
1214663378
13a3078c4
1467bc700
15450ba75
hex2f1c44c

49398860 has 96 divisors (see below), whose sum is σ = 127680000. Its totient is φ = 16003008.

The previous prime is 49398847. The next prime is 49398863. The reversal of 49398860 is 6889394.

It is not an unprimeable number, because it can be changed into a prime (49398863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130151 + ... + 130529.

It is an arithmetic number, because the mean of its divisors is an integer number (1330000).

Almost surely, 249398860 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 49398860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63840000).

49398860 is an abundant number, since it is smaller than the sum of its proper divisors (78281140).

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

49398860 is a wasteful number, since it uses less digits than its factorization.

49398860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 49398860 is about 7028.4322576233. The cubic root of 49398860 is about 366.9207806897.

The spelling of 49398860 in words is "forty-nine million, three hundred ninety-eight thousand, eight hundred sixty".

Divisors: 1 2 4 5 7 10 14 19 20 28 35 38 49 70 76 95 98 133 140 190 196 245 266 343 379 380 490 532 665 686 758 931 980 1330 1372 1516 1715 1862 1895 2653 2660 3430 3724 3790 4655 5306 6517 6860 7201 7580 9310 10612 13034 13265 14402 18571 18620 26068 26530 28804 32585 36005 37142 50407 53060 65170 72010 74284 92855 100814 129997 130340 144020 185710 201628 252035 259994 352849 371420 504070 519988 649985 705698 1008140 1299970 1411396 1764245 2469943 2599940 3528490 4939886 7056980 9879772 12349715 24699430 49398860