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84972801 = 3199317449
BaseRepresentation
bin1010001000010…
…01010100000001
312220220001202210
411010021110001
5133223112201
612233132333
72051154054
oct504112401
9186801683
1084972801
1143a68361
122455a0a9
13147b1984
14b3dca9b
1576d71d6
hex5109501

84972801 has 16 divisors (see below), whose sum is σ = 114480000. Its totient is φ = 56060928.

The previous prime is 84972791. The next prime is 84972809. The reversal of 84972801 is 10827948.

It is not a de Polignac number, because 84972801 - 26 = 84972737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84972801.

It is not an unprimeable number, because it can be changed into a prime (84972809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189025 + ... + 189473.

It is an arithmetic number, because the mean of its divisors is an integer number (7155000).

Almost surely, 284972801 is an apocalyptic number.

It is an amenable number.

84972801 is a deficient number, since it is larger than the sum of its proper divisors (29507199).

84972801 is a wasteful number, since it uses less digits than its factorization.

84972801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 84972801 is about 9218.0692663920. The cubic root of 84972801 is about 439.6360644204.

The spelling of 84972801 in words is "eighty-four million, nine hundred seventy-two thousand, eight hundred one".

Divisors: 1 3 199 317 449 597 951 1347 63083 89351 142333 189249 268053 426999 28324267 84972801