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10085279280 = 243542021997
BaseRepresentation
bin10010110010010000…
…10010011000110000
3222000212020021022020
421121020102120300
5131123312414110
64344430311440
7504631313406
oct113110223060
928025207266
1010085279280
11430597165a
121b55658580
13c4957879b
146b9601476
153e0605d70
hex259212630

10085279280 has 40 divisors (see below), whose sum is σ = 31264366512. Its totient is φ = 2689407744.

The previous prime is 10085279273. The next prime is 10085279333. The reversal of 10085279280 is 8297258001.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21010759 + ... + 21011238.

Almost surely, 210085279280 is an apocalyptic number.

10085279280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10085279280 is an abundant number, since it is smaller than the sum of its proper divisors (21179087232).

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

10085279280 is a wasteful number, since it uses less digits than its factorization.

10085279280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42022013 (or 42022007 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The spelling of 10085279280 in words is "ten billion, eighty-five million, two hundred seventy-nine thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 42021997 84043994 126065991 168087988 210109985 252131982 336175976 420219970 504263964 630329955 672351952 840439940 1008527928 1260659910 1680879880 2017055856 2521319820 3361759760 5042639640 10085279280