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1074630457 = 2239747981
BaseRepresentation
bin100000000001101…
…1000111100111001
32202220002212212001
41000003120330321
54200101133312
6254345021001
735426131255
oct10003307471
92686085761
101074630457
1150166784a
1225ba84761
1314183a514
14a2a17265
1564524057
hex400d8f39

1074630457 has 4 divisors (see below), whose sum is σ = 1074700836. Its totient is φ = 1074560080.

The previous prime is 1074630433. The next prime is 1074630461. The reversal of 1074630457 is 7540364701.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7540364701 = 31243237571.

It can be written as a sum of positive squares in 2 ways, for example, as 717382656 + 357247801 = 26784^2 + 18901^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1074630457 is a prime.

It is a super-2 number, since 2×10746304572 = 2309661238224057698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1074630497) 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 3 ways as a sum of consecutive naturals, for example, 1594 + ... + 46387.

It is an arithmetic number, because the mean of its divisors is an integer number (268675209).

Almost surely, 21074630457 is an apocalyptic number.

It is an amenable number.

1074630457 is a deficient number, since it is larger than the sum of its proper divisors (70379).

1074630457 is an equidigital number, since it uses as much as digits as its factorization.

1074630457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70378.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 1074630457 is about 32781.5566591948. The cubic root of 1074630457 is about 1024.2824109291.

The spelling of 1074630457 in words is "one billion, seventy-four million, six hundred thirty thousand, four hundred fifty-seven".

Divisors: 1 22397 47981 1074630457