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240428812 = 221319376577
BaseRepresentation
bin11100101010010…
…10011100001100
3121202102001022211
432111022130030
5443022210222
635505120204
75646416431
oct1625123414
9552361284
10240428812
111137967a8
1268629064
133aa71090
1423d07b88
1516193277
hexe54a70c

240428812 has 48 divisors (see below), whose sum is σ = 489929440. Its totient is φ = 102269952.

The previous prime is 240428767. The next prime is 240428819. The reversal of 240428812 is 218824042.

It is not an unprimeable number, because it can be changed into a prime (240428819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33268 + ... + 39844.

Almost surely, 2240428812 is an apocalyptic number.

It is an amenable number.

240428812 is an abundant number, since it is smaller than the sum of its proper divisors (249500628).

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

240428812 is a wasteful number, since it uses less digits than its factorization.

240428812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6650 (or 6648 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 31.

The square root of 240428812 is about 15505.7670561633. The cubic root of 240428812 is about 621.8163972521.

The spelling of 240428812 in words is "two hundred forty million, four hundred twenty-eight thousand, eight hundred twelve".

Divisors: 1 2 4 13 19 26 37 38 52 74 76 148 247 481 494 703 962 988 1406 1924 2812 6577 9139 13154 18278 26308 36556 85501 124963 171002 243349 249926 342004 486698 499852 973396 1624519 3163537 3249038 4623631 6327074 6498076 9247262 12654148 18494524 60107203 120214406 240428812