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872606481 = 31717109931
BaseRepresentation
bin110100000000101…
…110101100010001
32020210222000001120
4310000232230101
53241341401411
6222330552453
730424014135
oct6400565421
92223860046
10872606481
1140862218a
12204298729
1310ba24bc6
1483c693c5
155191a106
hex3402eb11

872606481 has 8 divisors (see below), whose sum is σ = 1231915104. Its totient is φ = 547517760.

The previous prime is 872606477. The next prime is 872606489. The reversal of 872606481 is 184606278.

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

It is not a de Polignac number, because 872606481 - 22 = 872606477 is a prime.

It is a super-2 number, since 2×8726064812 = 1522884141366406722, which contains 22 as substring.

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 not an unprimeable number, because it can be changed into a prime (872606489) 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, 8554915 + ... + 8555016.

It is an arithmetic number, because the mean of its divisors is an integer number (153989388).

Almost surely, 2872606481 is an apocalyptic number.

It is an amenable number.

872606481 is a deficient number, since it is larger than the sum of its proper divisors (359308623).

872606481 is a wasteful number, since it uses less digits than its factorization.

872606481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17109951.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 872606481 is about 29539.9133546461. The cubic root of 872606481 is about 955.5926736022.

The spelling of 872606481 in words is "eight hundred seventy-two million, six hundred six thousand, four hundred eighty-one".

Divisors: 1 3 17 51 17109931 51329793 290868827 872606481