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489113979880 = 235277367120283
BaseRepresentation
bin1110001111000010111…
…01110000101111101000
31201202111012020121000011
413013201131300233220
531003201134324010
61012410150021304
750223462142351
oct7074135605750
91652435217004
10489113979880
111794830aa459
127a963347834
133717aa20156
141995d542d28
15caca0aaa8a
hex71e1770be8

489113979880 has 64 divisors (see below), whose sum is σ = 1107498090240. Its totient is φ = 194406504192.

The previous prime is 489113979863. The next prime is 489113979901. The reversal of 489113979880 is 88979311984.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4006219 + ... + 4126501.

It is an arithmetic number, because the mean of its divisors is an integer number (17304657660).

Almost surely, 2489113979880 is an apocalyptic number.

489113979880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

489113979880 is an abundant number, since it is smaller than the sum of its proper divisors (618384110360).

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

489113979880 is a wasteful number, since it uses less digits than its factorization.

489113979880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120938 (or 120934 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 67.

The spelling of 489113979880 in words is "four hundred eighty-nine billion, one hundred thirteen million, nine hundred seventy-nine thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 277 367 554 734 1108 1385 1468 1835 2216 2770 2936 3670 5540 7340 11080 14680 101659 120283 203318 240566 406636 481132 508295 601415 813272 962264 1016590 1202830 2033180 2405660 4066360 4811320 33318391 44143861 66636782 88287722 133273564 166591955 176575444 220719305 266547128 333183910 353150888 441438610 666367820 882877220 1332735640 1765754440 12227849497 24455698994 48911397988 61139247485 97822795976 122278494970 244556989940 489113979880