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40440800488 = 2311603776123
BaseRepresentation
bin100101101010011101…
…011010010011101000
310212101101111112002111
4211222131122103220
51130310321103423
630324522412104
72631106063264
oct455235322350
9125341445074
1040440800488
1116172860a70
127a07661034
133a764aab5a
141d58d530a4
1510ba55960d
hex96a75a4e8

40440800488 has 32 divisors (see below), whose sum is σ = 82734608160. Its totient is φ = 18378895680.

The previous prime is 40440800483. The next prime is 40440800509. The reversal of 40440800488 is 88400804404.

40440800488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×404408004882 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40440800488.

It is not an unprimeable number, because it can be changed into a prime (40440800483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493195 + ... + 569317.

It is an arithmetic number, because the mean of its divisors is an integer number (2585456505).

Almost surely, 240440800488 is an apocalyptic number.

It is an amenable number.

40440800488 is an abundant number, since it is smaller than the sum of its proper divisors (42293807672).

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

40440800488 is a wasteful number, since it uses less digits than its factorization.

40440800488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82177 (or 82173 counting only the distinct ones).

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

The spelling of 40440800488 in words is "forty billion, four hundred forty million, eight hundred thousand, four hundred eighty-eight".

Divisors: 1 2 4 8 11 22 44 88 6037 12074 24148 48296 66407 76123 132814 152246 265628 304492 531256 608984 837353 1674706 3349412 6698824 459554551 919109102 1838218204 3676436408 5055100061 10110200122 20220400244 40440800488