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40880740 = 2252044037
BaseRepresentation
bin1001101111110…
…0101001100100
32211220221211111
42123330221210
540431140430
64020114404
71004323555
oct233745144
984827744
1040880740
112109233a
1211835a04
1386146b4
14560232c
1538c7c2a
hex26fca64

40880740 has 12 divisors (see below), whose sum is σ = 85849596. Its totient is φ = 16352288.

The previous prime is 40880717. The next prime is 40880743. The reversal of 40880740 is 4708804.

It can be written as a sum of positive squares in 2 ways, for example, as 7518564 + 33362176 = 2742^2 + 5776^2 .

It is not an unprimeable number, because it can be changed into a prime (40880743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1021999 + ... + 1022038.

It is an arithmetic number, because the mean of its divisors is an integer number (7154133).

Almost surely, 240880740 is an apocalyptic number.

It is an amenable number.

40880740 is an abundant number, since it is smaller than the sum of its proper divisors (44968856).

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

40880740 is a wasteful number, since it uses less digits than its factorization.

40880740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044046 (or 2044044 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 40880740 is about 6393.8048140368. The cubic root of 40880740 is about 344.4870624416.

The spelling of 40880740 in words is "forty million, eight hundred eighty thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 2044037 4088074 8176148 10220185 20440370 40880740