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40980580 = 22511318133
BaseRepresentation
bin1001110001010…
…1000001100100
32212010000210021
42130111001210
540442334310
64022204524
71005220624
oct234250144
985100707
1040980580
1121150353
1211883744
13864ac84
14562a884
1538e75da
hex2715064

40980580 has 24 divisors (see below), whose sum is σ = 86825592. Its totient is φ = 16246272.

The previous prime is 40980553. The next prime is 40980581. The reversal of 40980580 is 8508904.

It can be written as a sum of positive squares in 4 ways, for example, as 97344 + 40883236 = 312^2 + 6394^2 .

It is a super-3 number, since 3×409805803 (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (40980581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6807 + ... + 11326.

It is an arithmetic number, because the mean of its divisors is an integer number (3617733).

Almost surely, 240980580 is an apocalyptic number.

It is an amenable number.

40980580 is an abundant number, since it is smaller than the sum of its proper divisors (45845012).

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

40980580 is a wasteful number, since it uses less digits than its factorization.

40980580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18255 (or 18253 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 40980580 is about 6401.6076105928. The cubic root of 40980580 is about 344.7672728559.

The spelling of 40980580 in words is "forty million, nine hundred eighty thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 113 226 452 565 1130 2260 18133 36266 72532 90665 181330 362660 2049029 4098058 8196116 10245145 20490290 40980580