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972132869 = 3493597759
BaseRepresentation
bin111001111100011…
…001001000000101
32111202020110121002
4321330121020011
53442331222434
6240244103045
733042664421
oct7174311005
92452213532
10972132869
1145981a8a4
12231694a85
13126530c66
1493175b81
155a52957e
hex39f19205

972132869 has 8 divisors (see below), whose sum is σ = 977760000. Its totient is φ = 966522672.

The previous prime is 972132839. The next prime is 972132893. The reversal of 972132869 is 968231279.

It is a happy number.

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 972132869 - 28 = 972132613 is a prime.

It is a super-2 number, since 2×9721328692 = 1890084629980342322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972132839) 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, 121412 + ... + 129170.

It is an arithmetic number, because the mean of its divisors is an integer number (122220000).

Almost surely, 2972132869 is an apocalyptic number.

It is an amenable number.

972132869 is a deficient number, since it is larger than the sum of its proper divisors (5627131).

972132869 is a wasteful number, since it uses less digits than its factorization.

972132869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8467.

The product of its digits is 326592, while the sum is 47.

The square root of 972132869 is about 31179.0453510046. The cubic root of 972132869 is about 990.6233088024.

The spelling of 972132869 in words is "nine hundred seventy-two million, one hundred thirty-two thousand, eight hundred sixty-nine".

Divisors: 1 349 359 7759 125291 2707891 2785481 972132869