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487135740 = 223571326863
BaseRepresentation
bin11101000010010…
…001100111111100
31020221122001121110
4131002101213330
51444201320430
6120201002020
715033404550
oct3502214774
91227561543
10487135740
1122aa80323
12117183310
1379bcc900
14489a7860
152cb767b0
hex1d0919fc

487135740 has 144 divisors (see below), whose sum is σ = 1688214528. Its totient is φ = 102765312.

The previous prime is 487135723. The next prime is 487135763. The reversal of 487135740 is 47531784.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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, 67549 + ... + 74411.

It is an arithmetic number, because the mean of its divisors is an integer number (11723712).

Almost surely, 2487135740 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 487135740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (844107264).

487135740 is an abundant number, since it is smaller than the sum of its proper divisors (1201078788).

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

487135740 is a wasteful number, since it uses less digits than its factorization.

487135740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6908 (or 6893 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 487135740 is about 22071.1517597066. The cubic root of 487135740 is about 786.8343864198.

The spelling of 487135740 in words is "four hundred eighty-seven million, one hundred thirty-five thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 7 10 12 13 14 15 20 21 26 28 30 35 39 42 52 60 65 70 78 84 91 105 130 140 156 169 182 195 210 260 273 338 364 390 420 455 507 546 676 780 845 910 1014 1092 1183 1365 1690 1820 2028 2366 2535 2730 3380 3549 4732 5070 5460 5915 6863 7098 10140 11830 13726 14196 17745 20589 23660 27452 34315 35490 41178 48041 68630 70980 82356 89219 96082 102945 137260 144123 178438 192164 205890 240205 267657 288246 356876 411780 446095 480410 535314 576492 624533 720615 892190 960820 1070628 1159847 1249066 1338285 1441230 1784380 1873599 2319694 2498132 2676570 2882460 3122665 3479541 3747198 4639388 5353140 5799235 6245330 6959082 7494396 8118929 9367995 11598470 12490660 13918164 16237858 17397705 18735990 23196940 24356787 32475716 34795410 37471980 40594645 48713574 69590820 81189290 97427148 121783935 162378580 243567870 487135740