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1048428743 = 1761672279
BaseRepresentation
bin111110011111011…
…100000011000111
32201001210200212012
4332133130003013
54121344204433
6252011244435
734660332365
oct7637340307
92631720765
101048428743
114988a103a
1225314971b
1313929534b
149d356635
156209a848
hex3e7dc0c7

1048428743 has 4 divisors (see below), whose sum is σ = 1110101040. Its totient is φ = 986756448.

The previous prime is 1048428739. The next prime is 1048428749. The reversal of 1048428743 is 3478248401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3478248401 = 14923343949.

It is a cyclic number.

It is not a de Polignac number, because 1048428743 - 22 = 1048428739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1048428743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1048428749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30836123 + ... + 30836156.

It is an arithmetic number, because the mean of its divisors is an integer number (277525260).

Almost surely, 21048428743 is an apocalyptic number.

1048428743 is a deficient number, since it is larger than the sum of its proper divisors (61672297).

1048428743 is an equidigital number, since it uses as much as digits as its factorization.

1048428743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61672296.

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 1048428743 is about 32379.4493930950. The cubic root of 1048428743 is about 1015.8891132702.

The spelling of 1048428743 in words is "one billion, forty-eight million, four hundred twenty-eight thousand, seven hundred forty-three".

Divisors: 1 17 61672279 1048428743