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40250980 = 22571159443
BaseRepresentation
bin1001100110001…
…0111001100100
32210201221222001
42121202321210
540301012410
63554415044
7666061540
oct231427144
983657861
1040250980
11207a2180
1211591484
138453b63
1454baa20
15380133a
hex2662e64

40250980 has 96 divisors (see below), whose sum is σ = 107412480. Its totient is φ = 12305280.

The previous prime is 40250963. The next prime is 40250981. The reversal of 40250980 is 8905204.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (40250981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90639 + ... + 91081.

It is an arithmetic number, because the mean of its divisors is an integer number (1118880).

Almost surely, 240250980 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 40250980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53706240).

40250980 is an abundant number, since it is smaller than the sum of its proper divisors (67161500).

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

40250980 is a wasteful number, since it uses less digits than its factorization.

40250980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529 (or 527 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 40250980 is about 6344.3660045745. The cubic root of 40250980 is about 342.7089814527.

The spelling of 40250980 in words is "forty million, two hundred fifty thousand, nine hundred eighty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 59 70 77 110 118 140 154 220 236 295 308 385 413 443 590 649 770 826 886 1180 1298 1540 1652 1772 2065 2215 2596 3101 3245 4130 4430 4543 4873 6202 6490 8260 8860 9086 9746 12404 12980 15505 18172 19492 22715 24365 26137 31010 34111 45430 48730 52274 62020 68222 90860 97460 104548 130685 136444 170555 182959 261370 287507 341110 365918 522740 575014 682220 731836 914795 1150028 1437535 1829590 2012549 2875070 3659180 4025098 5750140 8050196 10062745 20125490 40250980