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40408800448 = 262921771983
BaseRepresentation
bin100101101000100011…
…010101110011000000
310212022011021202021211
4211220203111303000
51130224123103243
630321420455504
72630240064562
oct455043256300
9125264252254
1040408800448
1116156794955
1279b89aa594
133a6c985713
141d549c3332
1510b7837d9d
hex9688d5cc0

40408800448 has 28 divisors (see below), whose sum is σ = 82951259040. Its totient is φ = 19507695872.

The previous prime is 40408800431. The next prime is 40408800461. The reversal of 40408800448 is 84400880404.

It is a self number, because there is not a number n which added to its sum of digits gives 40408800448.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10884136 + ... + 10887847.

Almost surely, 240408800448 is an apocalyptic number.

It is an amenable number.

40408800448 is an abundant number, since it is smaller than the sum of its proper divisors (42542458592).

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

40408800448 is a wasteful number, since it uses less digits than its factorization.

40408800448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21772024 (or 21772014 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 40.

The spelling of 40408800448 in words is "forty billion, four hundred eight million, eight hundred thousand, four hundred forty-eight".

Divisors: 1 2 4 8 16 29 32 58 64 116 232 464 928 1856 21771983 43543966 87087932 174175864 348351728 631387507 696703456 1262775014 1393406912 2525550028 5051100056 10102200112 20204400224 40408800448