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10204278440 = 2352341270527
BaseRepresentation
bin10011000000011100…
…01110111010101000
3222100011011001110112
421200032032322220
5131344243402230
64404321033452
7510604635626
oct114016167250
928304131415
1010204278440
11436705a474
121b89485888
13c68111ca5
146cb33a516
153eacaed95
hex26038eea8

10204278440 has 64 divisors (see below), whose sum is σ = 24542300160. Its totient is φ = 3809006080.

The previous prime is 10204278439. The next prime is 10204278473. The reversal of 10204278440 is 4487240201.

It is a junction number, because it is equal to n+sod(n) for n = 10204278397 and 10204278406.

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, 97544 + ... + 172983.

It is an arithmetic number, because the mean of its divisors is an integer number (383473440).

Almost surely, 210204278440 is an apocalyptic number.

10204278440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10204278440 is an abundant number, since it is smaller than the sum of its proper divisors (14338021720).

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

10204278440 is a wasteful number, since it uses less digits than its factorization.

10204278440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270602 (or 270598 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 32.

The spelling of 10204278440 in words is "ten billion, two hundred four million, two hundred seventy-eight thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 23 40 41 46 82 92 115 164 184 205 230 328 410 460 820 920 943 1640 1886 3772 4715 7544 9430 18860 37720 270527 541054 1082108 1352635 2164216 2705270 5410540 6222121 10821080 11091607 12444242 22183214 24888484 31110605 44366428 49776968 55458035 62221210 88732856 110916070 124442420 221832140 248884840 255106961 443664280 510213922 1020427844 1275534805 2040855688 2551069610 5102139220 10204278440