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40880630 = 2573118839
BaseRepresentation
bin1001101111110…
…0100111110110
32211220221200102
42123330213312
540431140010
64020114102
71004323340
oct233744766
984827612
1040880630
112109224a
1211835932
13861462b
145602290
1538c7ba5
hex26fc9f6

40880630 has 32 divisors (see below), whose sum is σ = 86814720. Its totient is φ = 13563360.

The previous prime is 40880629. The next prime is 40880641. The reversal of 40880630 is 3608804.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40880593 and 40880602.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7250 + ... + 11589.

It is an arithmetic number, because the mean of its divisors is an integer number (2712960).

Almost surely, 240880630 is an apocalyptic number.

40880630 is an abundant number, since it is smaller than the sum of its proper divisors (45934090).

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

40880630 is a wasteful number, since it uses less digits than its factorization.

40880630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18884.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 40880630 is about 6393.7962119542. The cubic root of 40880630 is about 344.4867534647.

The spelling of 40880630 in words is "forty million, eight hundred eighty thousand, six hundred thirty".

Divisors: 1 2 5 7 10 14 31 35 62 70 155 217 310 434 1085 2170 18839 37678 94195 131873 188390 263746 584009 659365 1168018 1318730 2920045 4088063 5840090 8176126 20440315 40880630