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60868780 = 2257319467
BaseRepresentation
bin1110100000110…
…0100010101100
311020112110021021
43220030202230
5111040300110
610012343524
71336243000
oct350144254
9136473237
1060868780
11313a4685
1218474ba4
13c7c253b
148126700
1555252da
hex3a0c8ac

60868780 has 96 divisors (see below), whose sum is σ = 157248000. Its totient is φ = 19728576.

The previous prime is 60868747. The next prime is 60868781. The reversal of 60868780 is 8786806.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (60868781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130107 + ... + 130573.

It is an arithmetic number, because the mean of its divisors is an integer number (1638000).

Almost surely, 260868780 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 60868780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78624000).

60868780 is an abundant number, since it is smaller than the sum of its proper divisors (96379220).

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

60868780 is a wasteful number, since it uses less digits than its factorization.

60868780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 60868780 is about 7801.8446536701. The cubic root of 60868780 is about 393.3672494614.

The spelling of 60868780 in words is "sixty million, eight hundred sixty-eight thousand, seven hundred eighty".

Divisors: 1 2 4 5 7 10 14 19 20 28 35 38 49 70 76 95 98 133 140 190 196 245 266 343 380 467 490 532 665 686 931 934 980 1330 1372 1715 1862 1868 2335 2660 3269 3430 3724 4655 4670 6517 6538 6860 8873 9310 9340 13034 13076 16345 17746 18620 22883 26068 32585 32690 35492 44365 45766 62111 65170 65380 88730 91532 114415 124222 130340 160181 177460 228830 248444 310555 320362 434777 457660 621110 640724 800905 869554 1242220 1601810 1739108 2173885 3043439 3203620 4347770 6086878 8695540 12173756 15217195 30434390 60868780