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1072801969 = 43228710909
BaseRepresentation
bin111111111100011…
…010100010110001
32202202122222122021
4333330122202301
54144114130334
6254241511441
735404444351
oct7774324261
92682588567
101072801969
11500628aa8
1225b342581
1314134a185
14a269cb61
15642b23b4
hex3ff1a8b1

1072801969 has 8 divisors (see below), whose sum is σ = 1098331520. Its totient is φ = 1047298896.

The previous prime is 1072801913. The next prime is 1072801973. The reversal of 1072801969 is 9691082701.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1072801969 - 219 = 1072277681 is a prime.

It is a super-2 number, since 2×10728019692 = 2301808129380553922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1072801979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92887 + ... + 103795.

It is an arithmetic number, because the mean of its divisors is an integer number (137291440).

Almost surely, 21072801969 is an apocalyptic number.

It is an amenable number.

1072801969 is a deficient number, since it is larger than the sum of its proper divisors (25529551).

1072801969 is a wasteful number, since it uses less digits than its factorization.

1072801969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13239.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 1072801969 is about 32753.6558112221. The cubic root of 1072801969 is about 1023.7011409269.

The spelling of 1072801969 in words is "one billion, seventy-two million, eight hundred one thousand, nine hundred sixty-nine".

Divisors: 1 43 2287 10909 98341 469087 24948883 1072801969