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40067700678 = 233741994457
BaseRepresentation
bin100101010100001110…
…001001011111000110
310211102101110002101000
4211110032021133012
51124024312410203
630223513514130
72615625556605
oct452416113706
9124371402330
1040067700678
1115aa1199615
127922712946
133a170c7635
141d21591a3c
15109790b4a3
hex9543897c6

40067700678 has 16 divisors (see below), whose sum is σ = 89039334960. Its totient is φ = 13355900208.

The previous prime is 40067700677. The next prime is 40067700683. The reversal of 40067700678 is 87600776004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40067700671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370997175 + ... + 370997282.

It is an arithmetic number, because the mean of its divisors is an integer number (5564958435).

Almost surely, 240067700678 is an apocalyptic number.

40067700678 is an abundant number, since it is smaller than the sum of its proper divisors (48971634282).

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

40067700678 is a wasteful number, since it uses less digits than its factorization.

40067700678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741994468 (or 741994462 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The spelling of 40067700678 in words is "forty billion, sixty-seven million, seven hundred thousand, six hundred seventy-eight".

Divisors: 1 2 3 6 9 18 27 54 741994457 1483988914 2225983371 4451966742 6677950113 13355900226 20033850339 40067700678