Search a number
-
+
1072970871 = 3751093851
BaseRepresentation
bin111111111101000…
…011110001110111
32202202222120022220
4333331003301313
54144140031441
6254245253423
735406046650
oct7775036167
92682876286
101072970871
11500733995
1225b404273
131413a900b
14a2704527
15642e7466
hex3ff43c77

1072970871 has 8 divisors (see below), whose sum is σ = 1635003264. Its totient is φ = 613126200.

The previous prime is 1072970839. The next prime is 1072970891. The reversal of 1072970871 is 1780792701.

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

It is not a de Polignac number, because 1072970871 - 25 = 1072970839 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072970891) 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, 25546905 + ... + 25546946.

It is an arithmetic number, because the mean of its divisors is an integer number (204375408).

Almost surely, 21072970871 is an apocalyptic number.

1072970871 is a deficient number, since it is larger than the sum of its proper divisors (562032393).

1072970871 is an equidigital number, since it uses as much as digits as its factorization.

1072970871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51093861.

The product of its (nonzero) digits is 49392, while the sum is 42.

The square root of 1072970871 is about 32756.2340784163. The cubic root of 1072970871 is about 1023.7548619620.

The spelling of 1072970871 in words is "one billion, seventy-two million, nine hundred seventy thousand, eight hundred seventy-one".

Divisors: 1 3 7 21 51093851 153281553 357656957 1072970871