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40780230 = 2355692389
BaseRepresentation
bin1001101110010…
…0000111000110
32211201211221220
42123210013012
540414431410
64014021210
71003424541
oct233440706
984654856
1040780230
1121023877
12117a7806
1385aaa1a
1455b7858
1538a8070
hex26e41c6

40780230 has 32 divisors (see below), whose sum is σ = 98085600. Its totient is φ = 10851072.

The previous prime is 40780183. The next prime is 40780241. The reversal of 40780230 is 3208704.

It is a self number, because there is not a number n which added to its sum of digits gives 40780230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15876 + ... + 18264.

It is an arithmetic number, because the mean of its divisors is an integer number (3065175).

Almost surely, 240780230 is an apocalyptic number.

40780230 is an abundant number, since it is smaller than the sum of its proper divisors (57305370).

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

40780230 is a wasteful number, since it uses less digits than its factorization.

40780230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2968.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 40780230 is about 6385.9400247732. The cubic root of 40780230 is about 344.2045104013.

Adding to 40780230 its reverse (3208704), we get a palindrome (43988934).

The spelling of 40780230 in words is "forty million, seven hundred eighty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 569 1138 1707 2389 2845 3414 4778 5690 7167 8535 11945 14334 17070 23890 35835 71670 1359341 2718682 4078023 6796705 8156046 13593410 20390115 40780230