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40050780 = 22357118669
BaseRepresentation
bin1001100011001…
…0000001011100
32210100210100020
42120302001130
540223111110
63550232140
7664266060
oct230620134
983323306
1040050780
1120675820
12114b5650
1383b39b3
145467aa0
1537b1d70
hex263205c

40050780 has 96 divisors (see below), whose sum is σ = 139829760. Its totient is φ = 8321280.

The previous prime is 40050779. The next prime is 40050811. The reversal of 40050780 is 8705004.

It is a self number, because there is not a number n which added to its sum of digits gives 40050780.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 286 + ... + 8954.

It is an arithmetic number, because the mean of its divisors is an integer number (1456560).

Almost surely, 240050780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40050780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69914880).

40050780 is an abundant number, since it is smaller than the sum of its proper divisors (99778980).

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

40050780 is a wasteful number, since it uses less digits than its factorization.

40050780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8699 (or 8697 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 40050780 is about 6328.5685585289. The cubic root of 40050780 is about 342.1398491017.

Adding to 40050780 its reverse (8705004), we get a palindrome (48755784).

The spelling of 40050780 in words is "forty million, fifty thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 7 10 11 12 14 15 20 21 22 28 30 33 35 42 44 55 60 66 70 77 84 105 110 132 140 154 165 210 220 231 308 330 385 420 462 660 770 924 1155 1540 2310 4620 8669 17338 26007 34676 43345 52014 60683 86690 95359 104028 121366 130035 173380 182049 190718 242732 260070 286077 303415 364098 381436 476795 520140 572154 606830 667513 728196 910245 953590 1144308 1213660 1335026 1430385 1820490 1907180 2002539 2670052 2860770 3337565 3640980 4005078 5721540 6675130 8010156 10012695 13350260 20025390 40050780