Search a number
-
+
428579253670320 = 243255471108800761
BaseRepresentation
bin110000101110010100110001…
…0001011000101000110110000
32002012110202222002002100001100
41201130221202023011012300
5422133320302414422240
64115302331401404400
7156162554302643364
oct14134514213050660
92065422862070040
10428579253670320
11114616493727955
1240099644a99700
131551ab08b974cc
1477b94bcd492a4
1534834e3756e30
hex185ca622c51b0

428579253670320 has 120 divisors (see below), whose sum is σ = 1439575087047552. Its totient is φ = 114266910182400.

The previous prime is 428579253670297. The next prime is 428579253670387. The reversal of 428579253670320 is 23076352975824.

428579253670320 is a `hidden beast` number, since 4 + 2 + 8 + 5 + 7 + 9 + 2 + 536 + 70 + 3 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50461261 + ... + 58339500.

Almost surely, 2428579253670320 is an apocalyptic number.

428579253670320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

428579253670320 is an abundant number, since it is smaller than the sum of its proper divisors (1010995833377232).

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

428579253670320 is a wasteful number, since it uses less digits than its factorization.

428579253670320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108806251 (or 108806242 counting only the distinct ones).

The product of its (nonzero) digits is 152409600, while the sum is 63.

The spelling of 428579253670320 in words is "four hundred twenty-eight trillion, five hundred seventy-nine billion, two hundred fifty-three million, six hundred seventy thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 720 5471 10942 16413 21884 27355 32826 43768 49239 54710 65652 82065 87536 98478 109420 131304 164130 196956 218840 246195 262608 328260 393912 437680 492390 656520 787824 984780 1313040 1969560 3939120 108800761 217601522 326402283 435203044 544003805 652804566 870406088 979206849 1088007610 1305609132 1632011415 1740812176 1958413698 2176015220 2611218264 3264022830 3916827396 4352030440 4896034245 5222436528 6528045660 7833654792 8704060880 9792068490 13056091320 15667309584 19584136980 26112182640 39168273960 78336547920 595248963431 1190497926862 1785746890293 2380995853724 2976244817155 3571493780586 4761991707448 5357240670879 5952489634310 7142987561172 8928734451465 9523983414896 10714481341758 11904979268620 14285975122344 17857468902930 21428962683516 23809958537240 26786203354395 28571950244688 35714937805860 42857925367032 47619917074480 53572406708790 71429875611720 85715850734064 107144813417580 142859751223440 214289626835160 428579253670320