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40039228680 = 23351130332749
BaseRepresentation
bin100101010010100001…
…100010010100001000
310211100101212120010120
4211102201202110020
51124000020304210
630221015343240
72615131554063
oct452241422410
9124311776116
1040039228680
1115a87112140
127915081b20
133a11238cb9
141d1b89d8da
151095185270
hex952862508

40039228680 has 64 divisors (see below), whose sum is σ = 131037480000. Its totient is φ = 9706479360.

The previous prime is 40039228583. The next prime is 40039228687. The reversal of 40039228680 is 8682293004.

It is not an unprimeable number, because it can be changed into a prime (40039228687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15165055 + ... + 15167694.

It is an arithmetic number, because the mean of its divisors is an integer number (2047460625).

Almost surely, 240039228680 is an apocalyptic number.

40039228680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40039228680 is an abundant number, since it is smaller than the sum of its proper divisors (90998251320).

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

40039228680 is a wasteful number, since it uses less digits than its factorization.

40039228680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30332774 (or 30332770 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 40039228680 in words is "forty billion, thirty-nine million, two hundred twenty-eight thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 44 55 60 66 88 110 120 132 165 220 264 330 440 660 1320 30332749 60665498 90998247 121330996 151663745 181996494 242661992 303327490 333660239 363992988 454991235 606654980 667320478 727985976 909982470 1000980717 1213309960 1334640956 1668301195 1819964940 2001961434 2669281912 3336602390 3639929880 4003922868 5004903585 6673204780 8007845736 10009807170 13346409560 20019614340 40039228680