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40143660460 = 22514916678081
BaseRepresentation
bin100101011000101111…
…111010010110101100
310211121200101020121021
4211120233322112230
51124203234113320
630235225543524
72620540324651
oct453057722654
9124550336537
1040143660460
11160300602a2
127944044ba4
133a29a71a57
141d2b6c5c28
15109e412daa
hex958bfa5ac

40143660460 has 48 divisors (see below), whose sum is σ = 84928888800. Its totient is φ = 15938155520.

The previous prime is 40143660449. The next prime is 40143660493. The reversal of 40143660460 is 6406634104.

It is a super-2 number, since 2×401436604602 (a number of 22 digits) contains 22 as substring.

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, 4963620 + ... + 4971700.

It is an arithmetic number, because the mean of its divisors is an integer number (1769351850).

Almost surely, 240143660460 is an apocalyptic number.

It is an amenable number.

40143660460 is an abundant number, since it is smaller than the sum of its proper divisors (44785228340).

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

40143660460 is a wasteful number, since it uses less digits than its factorization.

40143660460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9906 (or 9904 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 40143660460 in words is "forty billion, one hundred forty-three million, six hundred sixty thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 149 298 596 745 1490 1667 2980 3334 6668 8081 8335 16162 16670 32324 33340 40405 80810 161620 248383 496766 993532 1204069 1241915 2408138 2483830 4816276 4967660 6020345 12040690 13471027 24081380 26942054 53884108 67355135 134710270 269420540 2007183023 4014366046 8028732092 10035915115 20071830230 40143660460