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40016440008 = 23321469937811
BaseRepresentation
bin100101010001001010…
…100110101011001000
310211021210222202221200
4211101022212223020
51123423202040013
630214443104200
72614434061566
oct452112465310
9124253882850
1040016440008
1115a75267726
127909512060
133a095ba48c
141d1884aa36
151093182e73
hex9512a6ac8

40016440008 has 48 divisors (see below), whose sum is σ = 108388098000. Its totient is φ = 13337553120.

The previous prime is 40016440007. The next prime is 40016440031. The reversal of 40016440008 is 80004461004.

It is not an unprimeable number, because it can be changed into a prime (40016440007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1039423 + ... + 1077233.

It is an arithmetic number, because the mean of its divisors is an integer number (2258085375).

Almost surely, 240016440008 is an apocalyptic number.

It is an amenable number.

40016440008 is an abundant number, since it is smaller than the sum of its proper divisors (68371657992).

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

40016440008 is a wasteful number, since it uses less digits than its factorization.

40016440008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52522 (or 52515 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The spelling of 40016440008 in words is "forty billion, sixteen million, four hundred forty thousand, eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 14699 29398 37811 44097 58796 75622 88194 113433 117592 132291 151244 176388 226866 264582 302488 340299 352776 453732 529164 680598 907464 1058328 1361196 2722392 555783889 1111567778 1667351667 2223135556 3334703334 4446271112 5002055001 6669406668 10004110002 13338813336 20008220004 40016440008