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1072869353 = 3728996469
BaseRepresentation
bin111111111100101…
…010111111101001
32202202210102001222
4333330222333221
54144123304403
6254243151425
735405144663
oct7774527751
92682712058
101072869353
11500674696
1225b375575
13141371a4a
14a26b9533
15642c7338
hex3ff2afe9

1072869353 has 4 divisors (see below), whose sum is σ = 1101865860. Its totient is φ = 1043872848.

The previous prime is 1072869319. The next prime is 1072869367. The reversal of 1072869353 is 3539682701.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 754710784 + 318158569 = 27472^2 + 17837^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1072869353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1072869383) 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, 14498198 + ... + 14498271.

It is an arithmetic number, because the mean of its divisors is an integer number (275466465).

Almost surely, 21072869353 is an apocalyptic number.

It is an amenable number.

1072869353 is a deficient number, since it is larger than the sum of its proper divisors (28996507).

1072869353 is an equidigital number, since it uses as much as digits as its factorization.

1072869353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28996506.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 1072869353 is about 32754.6844436029. The cubic root of 1072869353 is about 1023.7225737839.

The spelling of 1072869353 in words is "one billion, seventy-two million, eight hundred sixty-nine thousand, three hundred fifty-three".

Divisors: 1 37 28996469 1072869353