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1240487468 = 221128192897
BaseRepresentation
bin100100111110000…
…0101011000101100
310012110012021220022
41021330011120230
510020031044333
6323031541312
742511653353
oct11174053054
93173167808
101240487468
1158724a660
122a752a838
13169ccbb6c
14baa6c99a
1573d86c98
hex49f0562c

1240487468 has 12 divisors (see below), whose sum is σ = 2368203432. Its totient is φ = 563857920.

The previous prime is 1240487453. The next prime is 1240487473. The reversal of 1240487468 is 8647840421.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 28192897 = 1240487468 / (1 + 2 + 4 + 0 + 4 + 8 + 7 + 4 + 6 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14096405 + ... + 14096492.

It is an arithmetic number, because the mean of its divisors is an integer number (197350286).

Almost surely, 21240487468 is an apocalyptic number.

It is an amenable number.

1240487468 is a deficient number, since it is larger than the sum of its proper divisors (1127715964).

1240487468 is a wasteful number, since it uses less digits than its factorization.

1240487468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28192912 (or 28192910 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 44.

The square root of 1240487468 is about 35220.5546236853. The cubic root of 1240487468 is about 1074.4778334438.

The spelling of 1240487468 in words is "one billion, two hundred forty million, four hundred eighty-seven thousand, four hundred sixty-eight".

Divisors: 1 2 4 11 22 44 28192897 56385794 112771588 310121867 620243734 1240487468