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97280471 = 298937691
BaseRepresentation
bin1011100110001…
…10000111010111
320210001100201102
411303012013113
5144400433341
613353020315
72260604351
oct563060727
9223040642
1097280471
114aa04292
12286b469b
1317200a12
14ccc40d1
158818c9b
hex5cc61d7

97280471 has 8 divisors (see below), whose sum is σ = 101768400. Its totient is φ = 92868160.

The previous prime is 97280431. The next prime is 97280503. The reversal of 97280471 is 17408279.

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 97280471 - 210 = 97279447 is a prime.

It is a super-3 number, since 3×972804713 (a number of 25 digits) contains 333 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 (97280431) 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, 16265 + ... + 21426.

It is an arithmetic number, because the mean of its divisors is an integer number (12721050).

Almost surely, 297280471 is an apocalyptic number.

97280471 is a deficient number, since it is larger than the sum of its proper divisors (4487929).

97280471 is a wasteful number, since it uses less digits than its factorization.

97280471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37809.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 97280471 is about 9863.0862816869. The cubic root of 97280471 is about 459.9125085651.

The spelling of 97280471 in words is "ninety-seven million, two hundred eighty thousand, four hundred seventy-one".

Divisors: 1 29 89 2581 37691 1093039 3354499 97280471